How does an Antenna work? | ICT #4

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  • Опубліковано 5 лют 2025
  • Antennas are widely used in the field of telecommunications and we have already seen many applications for them in this video series. Antennas receive an electromagnetic wave and convert it to an electric signal, or receive an electric signal and radiate it as an electromagnetic wave. In this video we are going to look at the science behind antennas.
    Read our more detailed article on the antenna technology here : www.learnengin...
    Be a Learn Engineering supporter or contributor : / @sabincivil
    instagram : / sabinzmathew
    Twitter : / sabinsmathew
    Telegram : t.me/sabinmathew
    Voice over artist : www.fiverr.com...

КОМЕНТАРІ • 1,6 тис.

  • @SabinCivil
    @SabinCivil  5 років тому +228

    Can you be one of our patron? www.patreon.com/LearnEngineering . I will truly appreciate that.

    • @mfwj_fo
      @mfwj_fo 5 років тому +8

      Sir , someone copied this videos , on channel name "ilmu rekayasa " .

    • @geethamadhuri8023
      @geethamadhuri8023 5 років тому +3

      Can you explain more about microstrip patch antenna in detail? Will be very useful
      Thanks in advance

    • @alexsah4209
      @alexsah4209 5 років тому +2

      @RAHMAN SARKER AlexSah

    • @astroid9087
      @astroid9087 5 років тому +3

      Paypal donation?

    • @Crazy_Rider299
      @Crazy_Rider299 5 років тому +2

      5:33 What does the Russian car VAZ-2106 "Zhiguli" do in this video?)🤣

  • @hookem234
    @hookem234 5 років тому +737

    In 12 years of studying and practicing electrical engineering, this is the most succinct and clear explanation of antenna theory I've every heard! Great work!

    • @pratwurschtgulasch6662
      @pratwurschtgulasch6662 4 роки тому +4

      i feel sorry for you, that you believe this crap

    • @lordspongebobofhousesquare1616
      @lordspongebobofhousesquare1616 4 роки тому +7

      @@pratwurschtgulasch6662 never saw an antenna before?

    • @angadsingh9314
      @angadsingh9314 4 роки тому +7

      @@pratwurschtgulasch6662 I literally build antennas.....

    • @pratwurschtgulasch6662
      @pratwurschtgulasch6662 4 роки тому +8

      @@angadsingh9314 lot's of people are building tv's too, doesn't mean they know how they work. you have to ask the person that designed them and they might know.

    • @danialphaomega
      @danialphaomega 4 роки тому +3

      Want to learn more about antennas?
      Learn ham

  • @leftright4450
    @leftright4450 4 роки тому +783

    You are great man. Being a Graphic's designer i understand how much hard work you put in a 8 minutes video. Love for you :)

    • @chetankumar1160
      @chetankumar1160 4 роки тому +1

      ua-cam.com/video/k3Lpe77OIiQ/v-deo.html
      See this video for more info!!!

    • @santhanamariappan9858
      @santhanamariappan9858 4 роки тому +6

      Yes it's more difficult

    • @AboutTheFathers.business
      @AboutTheFathers.business 3 роки тому +1

      Tell me about it. Thank you for taking time out of your life to do this for all of us. You are quite talented

    • @leftright4450
      @leftright4450 3 роки тому

      @@AboutTheFathers.business hi julian. Kindly tell me what's your Question :)

    • @muhammadmn8671
      @muhammadmn8671 3 роки тому +1

      He bear a lot of helping hands

  • @catalin3407
    @catalin3407 5 років тому +1379

    I like when you go straight to the point and do not make us waste time.

    • @flightmaster178
      @flightmaster178 5 років тому +4

      Amazing video and covered a lot of great points. One thing to remember is a lot of antennas used from aircraft to cars use a quarter wave antenna. The antenna is then grounded to the chassis or airframe which itself acts like a quarter wave, and in turn you get your half wave setup.

    • @JOMFSE
      @JOMFSE 5 років тому +5

      Very efficient. Very engineer

    • @poonamkulung7042
      @poonamkulung7042 5 років тому +2

      Exactly.

    • @ahmdabdallah2132
      @ahmdabdallah2132 5 років тому +3

      Catalin 🔴 What Is Islam? ⚠️
      🔴 Islam is not just another religion.
      🔵 It is the same message preached by Moses, Jesus and Abraham.
      🔴 Islam literally means ‘submission to God’ and it teaches us to have a direct relationship with God.
      🔵 It reminds us that since God created us, no one should be worshipped except God alone.
      🔴 It also teaches that God is nothing like a human being or like anything that we can imagine.
      🌍 The concept of God is summarized in the Quran as:
      📖 { “Say, He is God, the One. God, the Absolute. He does not give birth, nor was He born, and there is nothing like Him.”} (Quran 112:1-4)[4] 📚
      🔴 Becoming a Muslim is not turning your back to Jesus.
      🔵 Rather it’s going back to the original teachings of Jesus and obeying him.

    • @88njtrigg88
      @88njtrigg88 5 років тому +14

      @@ahmdabdallah2132 Sir, just as Islam has no relevance in the world today, so is your comment to the O.P.

  • @bonescheffel7795
    @bonescheffel7795 Рік тому +22

    Probably the most straight forward explanation of radio waves I have ever seen.
    Speaking as a pro audio technician who deals with wireless all the time. Thank you.

  • @IncroyablesExperiences
    @IncroyablesExperiences 5 років тому +377

    Great explanation! This should be the intro of any radio wave class, straight forward to the goal!

    • @mohamednour5600
      @mohamednour5600 4 роки тому +4

      And what will happen to the endless integration equations :D

    • @IncroyablesExperiences
      @IncroyablesExperiences 4 роки тому +6

      @@mohamednour5600 There are absolutely necessary, but introduced too early, most doesn't understand nothing but can manage some exercises because they replicate the method they've seen.

    • @domtryverton976
      @domtryverton976 4 роки тому

      support you!

    • @oldmech619
      @oldmech619 4 роки тому +5

      Thanks a Lot. This video helped me visualize how antennas worked. I worked in the avionics most of my life. Never could visualize how a signal was physically produced.

    • @capgains
      @capgains 4 роки тому +1

      OldMech amazing how good instructions help complete the learning experience

  • @josecarlosferreira4942
    @josecarlosferreira4942 3 роки тому +9

    "Please note that the description of antenna we explained here is very basic". My man, this explanation is better and clearer than the others that I ever heard.

  • @judealanraj3692
    @judealanraj3692 2 роки тому +60

    As I'm an engineering student and studying physics and also I know something about graphical designing, I know your work is huge to bring imaginative concepts in front of my eyes

    • @dr.angerous
      @dr.angerous 2 роки тому

      Haha you sure. Go back harvesting coconuts

    • @Novascular
      @Novascular 2 роки тому

      @@dr.angerous you aren't shit and will never be shit, that comment was unnecessary as fuck

    • @dr.angerous
      @dr.angerous 2 роки тому

      @@Novascular lol.

  • @zeorxofline
    @zeorxofline 5 років тому +176

    in 8 minutes you show us what we took years to understand.
    more plz we are thirsty
    many thanks sir, from LIBYA

    • @zeorxofline
      @zeorxofline 5 років тому +3

      ​@StealthyMonk @ not as used to be of course, thanks to NATO " freedom ".But I can say apart from unrest around Tripoli now, Life is going however people go to work and schools and universities are still open. Libyan National Army "LNA" is restoring the country and going to bring stability and order.

    • @zeorxofline
      @zeorxofline 5 років тому

      @StealthyMonk
      thanks my friend, which part of the world you are ?

    • @zeorxofline
      @zeorxofline 5 років тому

      @StealthyMonk beautiful country, my respect

    • @raziarahmat4299
      @raziarahmat4299 3 роки тому

      I live in Karachi Pakistan I like your comments send 4 month ago

  • @maxwang2537
    @maxwang2537 4 роки тому +26

    I've been struggling to understand how antennas work for ages. This one eventually explained it clearly to me in an easy to understand way. Huge thanks.

    • @vincecox8376
      @vincecox8376 Рік тому

      you and I are on the same page!! yes the pyramids were a interplanetary communication device that operated at a very low frequency. But also the great Pyramid of Egypt was a teletransportation device, ,, NOW Stone Henge and Gobekli Tape: they were power plants. , You will see chips on the upper parts of the stones as they were perfected to a operating frequency. The horizontal pillars were set to vibrate at a particular frequency magnetically, for many reasons, each horizontal rock had a purpose!! some were used to excite the seedlings in the ground, to expedite the growth, some were tuned into earths mag field and provided magnetic lift via the Earths "B" field . Check out Coral Castle Florida, ED used What I call a "B" field generator, His generator used "V" magnets to ensure max delivery of the "B" field Just like is being used at the black pyramid of Alaska. His generator used 25, V mag around and 5 deep to produce the "B" field into the earth and special stones. THE "B" field is the center of a magnet/ some like to refer to it as the neutron field. But the 'B" field is much much more !!! I wonder if the black pyramid of Alaska used magnetite as a skin for the pyramid that would explain many things!!! Tesla new about the free power that's available through the CENTER FIELD of a magnet AS you are well aware the rich boys didn't want it, It's been there all the time. When the government took down the horizontal stone at Coral Castle the entrance door stopped working. Funny thing they gave us the clue,, His horizontal rock was providing the magnetic energy to support the access door. AS you know magnetic energy is perpetual JUST GETTING started with all this. I don't need to brag about all my credential.!! I got into physics back in 1959 as a ham operator at 9 years old I would design and build my tube type radio's for Rec and xmit. I know what I'm talking about.. When they say all they had were copper tools OMG HOW STUPID!!! when you understand the properties of a inductive that being utilize to build the pyramids you would understand a copper tool was every bit of a power tool BIG TIME!!!!!!!!!!!!!!!!

  • @waxy3220
    @waxy3220 5 років тому +15

    Best and most simple antenna explanation I've seen in my life, good work.

  • @ololh4xx
    @ololh4xx 4 роки тому +2

    this was probably the single most useful video i have seen in the past few years

  • @yuvrajcharan5387
    @yuvrajcharan5387 Рік тому +5

    It make me cry to see that such hardworking people still exist....

  • @ethanhu2831
    @ethanhu2831 3 місяці тому

    Can we just spend a few seconds to appreciate how wonderful the explanation and the animation are made in the video... Big hands to whoever makes all these possible!

  • @kaizoku47
    @kaizoku47 5 років тому +9

    thank you very much for the well detailled explanation ,i've been studying antennas for two years and i felt like this video got all what i was missing

  • @alexxwwctzn
    @alexxwwctzn 5 років тому +3

    OMG I'm an electronic engineer and never see better explanation and discription of such kind theory!

    • @vincecox8376
      @vincecox8376 2 роки тому +1

      We live in a 100% magnetic universe..... it's that simple!! The center of a magnet is by far the most powerful part!!! that's where you will find anti gravity and most everything else. STUPID HUMANS!! We went backwards in the Iron age!! the center of a magnet is where we belong after all that's what we are all configured with..FACT!
      Please review the works at "CORAL CASTLE, Florida. (UA-cam), He would "VIBRATE" ,, not oscillate the granite at a resonant frequency to the type stone he was working with. Granit has allot of magnetic properties given it's make up... You just need to vibrate at the correct freq. and it will become workable. Keep in mind we are talking about vibrating only the "B" field of a magnet into the rock!!! You will note at Coral Castle he also had a horizontal stone , similar to Stone Henge... All his magnetic generators were in the repel mode to maximize the "B" field.. SIMILAR TO THOSE Shown ON THE PYRAMIDS OF EGYPT.. FACT!!, THINK about it THAT'S exactly why they used copper tools!!!! You must use copper tools and any iron would totally dispute the field. Quantum Math is total B.S. E=MC2 is also total BS... E=MD. (Magnetic density). Thanks Vincenzo.. Please use your brain!! If your professor gives you any flack, have him explain the speed of magnetism. It's instantaneous.
      That's how they used the pyramids as transportation devices, inter Galaxy type transportation that's exactly why they were 8 sides to create a perfect hologram from earths magnetic field that could be used to connect interglacially

  • @vikashdhruwanshi574
    @vikashdhruwanshi574 5 років тому +11

    Best video ever about electro magnetic.....
    I am satisfied after watching this
    Thank you sir..

  • @silverywingsagain
    @silverywingsagain 3 роки тому +7

    As an electronics hobbyist this is the first time i've had antennas explained to me clearly. Great job!

    • @raziarahmat4299
      @raziarahmat4299 3 роки тому

      I live in Karachi Pakistan I like your comments if you don't mind

  • @KamalKumar-qg8rk
    @KamalKumar-qg8rk 5 років тому +34

    I love your efforts to explain difficult engineering system

  • @arkaprabhoadhikary9659
    @arkaprabhoadhikary9659 3 роки тому +1

    This is the most understandable explaination about Antenna Wave-propagation, I've ever seen. Thank you, you have made my day!

  • @julinization
    @julinization 5 років тому +4

    Finally a good explanation on antennas, job well done.

  • @PermataIlmu
    @PermataIlmu 3 роки тому +1

    Beautiful video! All explained in less than 10 minutes. I've never understand antennas until today. Thank you bro.

  • @jakisonojha8433
    @jakisonojha8433 5 років тому +367

    Why books also not explain the same way. I always had doubt how antenna works. All cleared in just 5mins. l don't know how to thank you.

    • @emonhossain4353
      @emonhossain4353 5 років тому

      I had also problem.

    • @charlesabram7257
      @charlesabram7257 5 років тому +13

      You can thank him by paying him a small amount of money 😀

    • @jakisonojha8433
      @jakisonojha8433 5 років тому +3

      @@charlesabram7257 I will do some day. :)

    • @anas8183
      @anas8183 5 років тому +1

      Click the support button 7:50

    • @qamarpasha2818
      @qamarpasha2818 5 років тому +3

      by becoming a patreon

  • @blitzblutz
    @blitzblutz 4 роки тому +5

    I've waited a long time to get this information! Thank you.

  • @Aniruddha_godbole
    @Aniruddha_godbole 5 років тому +7

    Hey Sabin,
    Its great to see your videos.
    Your content easily understood than 6 months of lectures by engineering teachers.
    Please Upload more and more.
    Best Luck

  • @darkstar795
    @darkstar795 5 років тому +10

    One of the best videos explaining how antennas function that I've seen. Kudos!

  • @Enrico-Migliore
    @Enrico-Migliore 4 роки тому +9

    Best explaination ever. After 25 years I finally understood the oscillating dipole

  • @Lichfeldian--Suttonian
    @Lichfeldian--Suttonian 8 місяців тому

    I am _very_ new to telecoms; just 2½ years. I am a CAD draughtsperson and hungry to know all that I can about telecoms design, i.e., the drawing content. This is straight there and without all the ‘telecom speak’ that I encounter, both at work and on-line. Brilliant.

  • @goon5544
    @goon5544 5 років тому +4

    So informative, I can't believe how much I learn so quickly from your videos.

  • @dhruvshah503
    @dhruvshah503 Рік тому +1

    Incredibe video. i have an antenna exam tomorrow and this taught me more than a entire semester.

  • @shubhambhatt7502
    @shubhambhatt7502 5 років тому +4

    Oh my god that was really a high quality content that physics of em wave(kink generation) is really appreciable u did a hard work thank you so much keep making such kinds of videos.

  • @josephmw431
    @josephmw431 2 роки тому

    The best explanation ever. This will save me money from doing too much research.

  • @robinkhaira1
    @robinkhaira1 5 років тому +3

    this video should be a part of studies at all engineering institutes. great explanation

    • @chetankumar1160
      @chetankumar1160 4 роки тому

      ua-cam.com/video/k3Lpe77OIiQ/v-deo.html
      See this video for more info!!!

  • @wallaceluz3452
    @wallaceluz3452 4 роки тому +2

    Very thank you, man. I've been studing engineering for some years and no teacher have ilustrated this, although always speak about radiation and eletromagnetic waves.

  • @ImanSh
    @ImanSh 5 років тому +4

    It's an awesome explaining! I always wanted to know how Antenna works and your video explains it in the best way.

  • @mikimouse3001
    @mikimouse3001 4 роки тому +2

    This is the video that finally enlightened me about how radiowaves are generated and especially what shape they have.

    • @vincecox8376
      @vincecox8376 2 роки тому +1

      We live in a 100% magnetic universe..... it's that simple!! The center of a magnet is by far the most powerful part!!! that's where you will find anti gravity and most everything else. STUPID HUMANS!! We went backwards in the Iron age!! the center of a magnet is where we belong after all that's what we are all configured with..FACT!
      Please review the works at "CORAL CASTLE, Florida. (UA-cam), He would "VIBRATE" ,, not oscillate the granite at a resonant frequency to the type stone he was working with. Granit has allot of magnetic properties given it's make up... You just need to vibrate at the correct freq. and it will become workable. Keep in mind we are talking about vibrating only the "B" field of a magnet into the rock!!! You will note at Coral Castle he also had a horizontal stone , similar to Stone Henge... All his magnetic generators were in the repel mode to maximize the "B" field.. SIMILAR TO THOSE Shown ON THE PYRAMIDS OF EGYPT.. FACT!!, THINK about it THAT'S exactly why they used copper tools!!!! You must use copper tools and any iron would totally dispute the field. Quantum Math is total B.S. E=MC2 is also total BS... E=MD. (Magnetic density). Thanks Vincenzo.. Please use your brain!! If your professor gives you any flack, have him explain the speed of magnetism. It's instantaneous.
      That's how they used the pyramids as transportation devices, inter Galaxy type transportation that's exactly why they were 8 sides to create a perfect hologram from earths magnetic field that could be used to connect interglacially

  • @deeiks12
    @deeiks12 5 років тому +6

    Love the 2106 in the garage!

  • @ravindrasuryawanshi549
    @ravindrasuryawanshi549 3 роки тому +1

    One week lecture understand within eight minutes. Ur genius sir. Thanks🙏🙏

  • @Antz_411
    @Antz_411 5 років тому +5

    Well really clears up what a couple years of reading textbooks never did.

  • @AjinkyaMahajan
    @AjinkyaMahajan 5 років тому +5

    For the first time, I find an excellent explanation of this topic.
    Really fabulous Video & thanks a lot for sharing ✨✨

  • @anandbhamashetti9730
    @anandbhamashetti9730 4 місяці тому

    Really great work. This cleared all my doubts. No book can explain with this much clarity

  • @Hambxne
    @Hambxne 5 років тому +5

    thank you guys for the brilliant work you consistently put out

  • @pfc3005
    @pfc3005 4 роки тому +4

    *Most learning full video I’ve already saw this year! Well done!*

    • @chetankumar1160
      @chetankumar1160 4 роки тому

      ua-cam.com/video/k3Lpe77OIiQ/v-deo.html
      See this video for more info!!!

  • @IPS423
    @IPS423 2 роки тому

    Thanks

  • @picco_only
    @picco_only 5 років тому +16

    you guys are amazing
    thank you very much
    the most useful youtube page

    • @chetankumar1160
      @chetankumar1160 4 роки тому

      ua-cam.com/video/k3Lpe77OIiQ/v-deo.html
      See this video for more info!!!

  • @dv.singh97
    @dv.singh97 5 років тому +17

    I always like your videos for the content you provide us!

    • @chetankumar1160
      @chetankumar1160 4 роки тому

      ua-cam.com/video/k3Lpe77OIiQ/v-deo.html
      See this video for more info!!!

  • @murphyomni1542
    @murphyomni1542 4 роки тому +2

    such clear tutorial that i’ve never learnt in the class thx

  • @NEMountainG
    @NEMountainG 5 років тому +111

    I have a question. In the animation where the antenna creates the signal, you can see that he signal spreads out as it propagates. During the animation where the antenna receives the signal, you just played the first animation in reverse, but wouldn't the geometry of the incoming signal look completely different (it wouldn't magically be drawn towards a point)?? Thanks!

    • @kaderdenen
      @kaderdenen 5 років тому +26

      Good point. signals are not focused to receiver antenna like showed in the animation. Isotropic antenna waves propagate all directions equally, so the gain of the receiver antenna is inversely proportional to square of the distance.

    • @jassetalvento4324
      @jassetalvento4324 5 років тому +1

      That was focused at the parabolic disc.

    • @SabinCivil
      @SabinCivil  5 років тому +30

      Yah, the shape of incoming waves will be different.

    • @0MoTheG
      @0MoTheG 5 років тому

      @Evil Component Quantum Mechanics? What are you talking about? What is missing are all the near fields.

    • @kdunker117
      @kdunker117 4 роки тому

      @Heads Mess im not very informed on this stuff, but I watched the waves as circles hit the thing, and its the same action as the single line wave traveling one way. Not sure if that was what you were getting at tho.

  • @harikaimal
    @harikaimal 11 місяців тому

    Great explanation, no BS, and great graphics. Congratulations, and many thanks!

  • @yashpatil6727
    @yashpatil6727 5 років тому +10

    This channel is doing a great job. For explaining concepts in engineering. Superbly impressed.😍

  • @adamvalent5249
    @adamvalent5249 5 років тому

    The best antennas explanation video I have ever seen!

  • @zeddoes
    @zeddoes 2 роки тому +7

    When I was a kid , my dad made an antenna out of an aluminum plate. He kinda nailed it to a piece of lumber with two nails from the middle and connected the heads of cable on them. And it worked perfectly. Now I know why it worked

  • @JLCPCB
    @JLCPCB 2 роки тому +2

    Very nicely and deeply explanation, great work! 🙂

  • @davidbrayshaw3529
    @davidbrayshaw3529 5 років тому +9

    Contrary to the information provided at the beginning of this presentation, closed circuit inductors most certainly do propagate radio frequency inputs and they are very capable receiving antennas also. This type of antenna is popular amongst "ham" radio enthusiasts and has proven effectiveness.
    All antenna designs are inductive devices, not just loops or coils. A dipole is also an inductor.
    What differentiates an antenna from other inductors such as an ignition coil used in a car is the frequency of the input signal. At low frequencies the electromagnetic wave surrounding an inductor will collapse back into the inductor as the polarity of the wave form reverses. A good example of this can be found in power transmission lines operating at 50-60hz. They do have an electromagnetic field surrounding them but with each cycle the field collapses and is absorbed by the transmission line. You can imagine the inefficiencies of transmitting power if this were not the case.
    The key factor in creating radio propagation is the frequency of the signal fed into the inductor. It is generally accepted that to effect radio propagation the signal fed into an inductor needs to be 100 khz. and above in free air.
    In order to understand radio propagation it is vital to understand that like charges repel each other.
    When a radio frequency signal is fed into an inductor an electromagnetic charge is created around the inductor. Because the frequency of the input is high the electromagnetic field cannot collapse back into the inductor before the next peak of like charge enters the inductor. Again, like charges repel. This forces the electromagnetic field surrounding the inductor to "snap off" and to be "pushed away from the inductor and thus we have effected radio propagation.
    What is a radio then? Good question. In the case of something like a radio station transmitter it is a device that converts audio frequency (80-20000 hz.) into a much higher frequency i.e. 106.7 mhz. and feeds that signal electrically into an inductor (antenna) which is then propagated as an electromagnetic signal.
    In the case of a radio receiver, it is a device that converts a high frequency electromagnetic wave down to frequencies in the audio range and with the use of an audio amplifier and speaker back into sound.
    I hope this has been help to anyone trying to grasp the basics of radio like I did.

    • @dwilliams2068
      @dwilliams2068 5 років тому +2

      Drop the 100 khz comment. What frequencies do submarines use when under water?

    • @davidbrayshaw3529
      @davidbrayshaw3529 5 років тому +3

      @@dwilliams2068 ,Submarines use very low frequencies for radio. Audio frequency transmissions are possible underwater. Low frequencies are employed underwater as signal attenuation increases with frequency in this environment. Note that in regards to my assertion that radio propagation starts to occur at 100 khz I do state "in free air". This is perhaps a generalisation, it is possible to detect frequencies below this level but in the context of both propagation and modulation the practical limits imposed on these lower frequencies makes them a fairly ineffective carrier of data.

    • @dwilliams2068
      @dwilliams2068 5 років тому +1

      @@davidbrayshaw3529 Yes I know. Among other assignments in the navy I was ASW Officer on a destroyer and had many interactions with submarines, fortunately our own subs. You are probably familiar with the UQC.

    • @dwilliams2068
      @dwilliams2068 5 років тому +1

      @@davidbrayshaw3529 I really don't know. I left the navy many years ago, but there is something that might interest you. The UQC on our ship was built by Bendix Pacific. As I was being relieved from active duty in San Diego there was a flyer on the table from Bendix Pacific in North Hollywood. Having had a long experience in electronics and a degree in Engineering Physics, I decided to visit Bendix and was hired on the spot. I was given a desk and a budget to buy books on transistors and dit early work on solid state telemetry systems. I worked in telemetry and later moved to San Diego to work on the Atlas missile, followed by many years in aerospace and commercial projects.
      Returning yo my time on the destroyer, I was also Electronics Officer. We had a shipyard overhaul and our radios were all converted from VHF to UHF, all but the TBS on the bridge. Many times we could see a ship but not be able to talk to them on the radio systems, while the captain, using the TBS on the bridge, could. It caused me much grief. Only when I started working on missile tracking systems did I learn that the UHF failure was destructive multipath.

    • @dwilliams2068
      @dwilliams2068 5 років тому +1

      @@davidbrayshaw3529 Too long ago to know. As I left active duty I saw a brochure from Bendis Pacific who had made our UQC. I thought it was interesting so I went there and was hired on the spot, based on my experience and degree in Engineering Physics. I was given a desk and a budget to buy books on transistors. Within a year I had developed the first solid state telemetry components and had a patent on one circuit.
      Returning to the ship, I was also electronics officer. We had a shipyard overhaul that replaced all our radio systems, except for the TBS on the bridge, with UHF systems. Sometimes we could see a ship but couldn't contact them on UHF but the captain could reach them with the VHF TBS. It caused me a lot of grief. Only when I moved back to San Diego to work on Atlas missile tracking did I realize that the UHF systems were affected by destructive multipath reflection from the ocean.

  • @JimBlair
    @JimBlair 4 роки тому +1

    Genius at work!...fantastically simple explanations for complex physics, with great support graphics....its the best breakdown I've seen!

  • @mysticnate5936
    @mysticnate5936 2 роки тому +8

    how did a human being reach to a conclusion that oscilating dipole can create a travelling EM wave and then to transmit information using that is pure genius... damn

    • @IncognitoInkWarrior
      @IncognitoInkWarrior 2 роки тому +2

      that is not the work of a single day,it took centuries and so many brilliant minds to reach at that conclusion gradually.

    • @vincecox8376
      @vincecox8376 Рік тому

      OMG.. you and I are on the same page!! yes the pyramids were a interplanetary communication device that operated at a very low frequency. But also the great Pyramid of Egypt was a teletransportation device, ,, NOW Stone Henge and Gobekli Tape: they were power plants. , You will see chips on the upper parts of the stones as they were perfected to a operating frequency. The horizontal pillars were set to vibrate at a particular frequency magnetically, for many reasons, each horizontal rock had a purpose!! some were used to excite the seedlings in the ground, to expedite the growth, some were tuned into earths mag field and provided magnetic lift via the Earths "B" field . Check out Coral Castle Florida, ED used What I call a "B" field generator, His generator used "V" magnets to ensure max delivery of the "B" field Just like is being used at the black pyramid of Alaska. His generator used 25, V mag around and 5 deep to produce the "B" field into the earth and special stones. THE "B" field is the center of a magnet/ some like to refer to it as the neutron field. But the 'B" field is much much more !!! I wonder if the black pyramid of Alaska used magnetite as a skin for the pyramid that would explain many things!!! Tesla new about the free power that's available through the CENTER FIELD of a magnet AS you are well aware the rich boys didn't want it, It's been there all the time. When the government took down the horizontal stone at Coral Castle the entrance door stopped working. Funny thing they gave us the clue,, His horizontal rock was providing the magnetic energy to support the access door. AS you know magnetic energy is perpetual JUST GETTING started with all this. I don't need to brag about all my credential.!! I got into physics back in 1959 as a ham operator at 9 years old I would design and build my tube type radio's for Rec and xmit. I know what I'm talking about.. When they say all they had were copper tools OMG HOW STUPID!!! when you understand the properties of a inductive that being utilize to build the pyramids you would understand a copper tool was every bit of a power tool BIG TIME!!!!!!!!!!!!!!!!

  • @achannelfornoreason6550
    @achannelfornoreason6550 4 роки тому +2

    You have made engineering beautiful !

  • @zeus224
    @zeus224 3 роки тому +3

    This explained more to me in 8 minutes than my university professors did in months. You are an amazing internet person!

  • @snowman1352
    @snowman1352 2 роки тому +1

    Thank you for this. It took me forever to find a video on the actual construction of a radio.

  • @Uwais_aman
    @Uwais_aman 5 років тому +4

    I wish professors taught us this way.. Good explanation.. Thanks a lot.. ❤️

    • @vincecox8376
      @vincecox8376 2 роки тому

      We live in a 100% magnetic universe..... it's that simple!! The center of a magnet is by far the most powerful part!!! that's where you will find anti gravity and most everything else. STUPID HUMANS!! We went backwards in the Iron age!! the center of a magnet is where we belong after all that's what we are all configured with..FACT!
      Please review the works at "CORAL CASTLE, Florida. (UA-cam), He would "VIBRATE" ,, not oscillate the granite at a resonant frequency to the type stone he was working with. Granit has allot of magnetic properties given it's make up... You just need to vibrate at the correct freq. and it will become workable. Keep in mind we are talking about vibrating only the "B" field of a magnet into the rock!!! You will note at Coral Castle he also had a horizontal stone , similar to Stone Henge... All his magnetic generators were in the repel mode to maximize the "B" field.. SIMILAR TO THOSE Shown ON THE PYRAMIDS OF EGYPT.. FACT!!, THINK about it THAT'S exactly why they used copper tools!!!! You must use copper tools and any iron would totally dispute the field. Quantum Math is total B.S. E=MC2 is also total BS... E=MD. (Magnetic density). Thanks Vincenzo.. Please use your brain!! If your professor gives you any flack, have him explain the speed of magnetism. It's instantaneous.
      That's how they used the pyramids as transportation devices, inter Galaxy type transportation that's exactly why they were 8 sides to create a perfect hologram from earths magnetic field that could be used to connect interglacially

  • @compuguy123
    @compuguy123 Рік тому

    This explained radio waves like ABC's in the matter of 8 minutes. Good work

  • @carlosnyasowa1709
    @carlosnyasowa1709 4 роки тому +3

    Love ya Learn Engineering team❤️ wish yu many more centuries to keep posting these. We need it!!!!

  • @riseabovehate9476
    @riseabovehate9476 5 років тому +2

    SO basically you need accelerating charges to produce electromagnetic waves. This video is absolutely fantastic for technical interviews

    • @vincecox8376
      @vincecox8376 2 роки тому

      We live in a 100% magnetic universe..... it's that simple!! The center of a magnet is by far the most powerful part!!! that's where you will find anti gravity and most everything else. STUPID HUMANS!! We went backwards in the Iron age!! the center of a magnet is where we belong after all that's what we are all configured with..FACT!
      Please review the works at "CORAL CASTLE, Florida. (UA-cam), He would "VIBRATE" ,, not oscillate the granite at a resonant frequency to the type stone he was working with. Granit has allot of magnetic properties given it's make up... You just need to vibrate at the correct freq. and it will become workable. Keep in mind we are talking about vibrating only the "B" field of a magnet into the rock!!! You will note at Coral Castle he also had a horizontal stone , similar to Stone Henge... All his magnetic generators were in the repel mode to maximize the "B" field.. SIMILAR TO THOSE Shown ON THE PYRAMIDS OF EGYPT.. FACT!!, THINK about it THAT'S exactly why they used copper tools!!!! You must use copper tools and any iron would totally dispute the field. Quantum Math is total B.S. E=MC2 is also total BS... E=MD. (Magnetic density). Thanks Vincenzo.. Please use your brain!! If your professor gives you any flack, have him explain the speed of magnetism. It's instantaneous.
      That's how they used the pyramids as transportation devices, inter Galaxy type transportation that's exactly why they were 8 sides to create a perfect hologram from earths magnetic field that could be used to connect interglacially

  • @billniko9310
    @billniko9310 5 років тому +3

    I can design my own antenna after this video.

  • @silenttitan3147
    @silenttitan3147 2 роки тому

    Fantastic video with lucid explanation!!!!

  • @cllgscreative
    @cllgscreative 4 роки тому +6

    This is insane. I knew technology in our world works mysteriously but this is really nuts.

  • @kumkum7525
    @kumkum7525 3 роки тому

    You are only the channel which explain better in both language thanx brio

  • @ninodroid2382
    @ninodroid2382 5 років тому +4

    Great video and clear explanation👍
    Wish my professor could explain like this.

  • @homescience8946
    @homescience8946 Рік тому

    Единственный ролик на всем ютубе, в котором реально объясняется принцип работы антенны. Лайк!

  • @AjayKumar-fd9mv
    @AjayKumar-fd9mv 5 років тому +30

    The question I still have from my engineering college days

    • @chetankumar1160
      @chetankumar1160 4 роки тому

      ua-cam.com/video/k3Lpe77OIiQ/v-deo.html
      See this video for more info!!!

  • @humayunmailbox
    @humayunmailbox 5 років тому

    best video I saw so far explaining about antenna

  • @danmick8645
    @danmick8645 5 років тому +7

    Wow, that is an impressive mangling of "acceleration".

  • @manjotpannu7430
    @manjotpannu7430 3 роки тому

    Sir I can understand hardwork behind this video ....... therefore I don't miss any video ....and also I like all videos after watching

  • @Peltio
    @Peltio 5 років тому +31

    The animation of the field lines for the induction case (from 0:35) is *wrong*.
    Field lines do not get squashed or deformed into increasingly eccentric elliptical shapes. They maintain the same shape, but - following Faraday representation - get rarer and rarer as the field strength diminish, then they disappear when the field goes to zero and reappear oriented in the opposite way when the polarity shifts. Then they get denser until they reach the maximum and the cycle repeats itself.
    You might want to correct that in your next video on the kink generation.
    Also, as others have noticed, you cannot just reverse the field to show how the antenna works as a receiver. You should place the receiving dipole outside the origin of the emitting dipole field (still propagating forward) and then make the electrons inside react to the portion of the field intercepted by the receiving antenna. This will also illustrate why so little power is received: most of the emitted energy goes in all the other directions.
    The animation of the dipole field of the transmitting antenna is very nice to see, I have to say.

    • @nikan4now
      @nikan4now 4 роки тому

      Thanks is there an animation or a textbook that shows this more accurately?

  • @thedivinewanderer2980
    @thedivinewanderer2980 2 роки тому

    Thanks!

  • @StolyarovSE
    @StolyarovSE 5 років тому +6

    AMAZING!!!! SUKA BLYAT, AMAZING!!! And awesome is Vaz 2106 in the garage

    • @timsecond
      @timsecond 5 років тому

      cyka blyat 😂

    • @LV-fx5nr
      @LV-fx5nr 5 років тому

      Да по-нашенски пиши уже :)

  • @saurabhrai9576
    @saurabhrai9576 4 роки тому

    Best way to teach, it will take days to understand by the book and with the help of teachers, but you made it so easy to understand in 10 minutes, very much thank you for your great work 🙏🙏🙏🙏

  • @mayankpathak4622
    @mayankpathak4622 5 років тому +9

    I hold a masters degree in Telecommunications Engineering and I still feel sometimes there’s some guy out there who can explain things even better and I know nothing.

    • @km4hr
      @km4hr 4 роки тому +3

      The deeper you dig into any subject the more you realize there's no bottom. I have an MS degree in engineering too. It gives me greater appreciation for how little I don't know. Fortunately a lot can be accomplished with a partial understanding. If you wait to it all, you'll never get anything done.

  • @rishabhkumar8115
    @rishabhkumar8115 4 роки тому +1

    Best animation, best explanation. Very usefull video 🎥🎥

  • @CoolDudeClem
    @CoolDudeClem 4 роки тому +3

    7:27 "The cellphone in your hand ..." Jokes on you, I'm watching this on a COMPUTER!

  • @rohandalal2903
    @rohandalal2903 4 роки тому +1

    At the end of video you said, thank you for watching the video. As an engineering student in India i thank you for making the video. THANK YOU!

  • @kandyjonasi1444
    @kandyjonasi1444 4 роки тому +26

    2:45 How a Wi-Fi logo was created...

  • @snowjae9380
    @snowjae9380 4 роки тому +1

    I wish I saw these videos while I was taking antenna courses in college. Thank you for sharing this useful piece of info!

  • @nikan4now
    @nikan4now 2 роки тому +11

    Could someone answer my question please? So does that mean in 3D, each electric wave is a doughnut-like shell (surface) that keeps growing in size as it propogates? Or is each wave a doughnut-like volume (with non-zero field values inside it) as it travels?

    • @vincecox8376
      @vincecox8376 2 роки тому

      We live in a 100% magnetic universe..... it's that simple!! The center of a magnet is by far the most powerful part!!! that's where you will find anti gravity and most everything else. STUPID HUMANS!! We went backwards in the Iron age!! the center of a magnet is where we belong after all that's what we are all configured with..FACT!
      Please review the works at "CORAL CASTLE, Florida. (UA-cam), He would "VIBRATE" ,, not oscillate the granite at a resonant frequency to the type stone he was working with. Granit has allot of magnetic properties given it's make up... You just need to vibrate at the correct freq. and it will become workable. Keep in mind we are talking about vibrating only the "B" field of a magnet into the rock!!! You will note at Coral Castle he also had a horizontal stone , similar to Stone Henge... All his magnetic generators were in the repel mode to maximize the "B" field.. SIMILAR TO THOSE Shown ON THE PYRAMIDS OF EGYPT.. FACT!!, THINK about it THAT'S exactly why they used copper tools!!!! You must use copper tools and any iron would totally dispute the field. Quantum Math is total B.S. E=MC2 is also total BS... E=MD. (Magnetic density). Thanks Vincenzo.. Please use your brain!! If your professor gives you any flack, have him explain the speed of magnetism. It's instantaneous.
      That's how they used the pyramids as transportation devices, inter Galaxy type transportation that's exactly why they were 8 sides to create a perfect hologram from earths magnetic field that could be used to connect interglacially

    • @vincecox8376
      @vincecox8376 2 роки тому

      We live in a 100% magnetic universe..... it's that simple!! The center of a magnet is by far the most powerful part!!! that's where you will find anti gravity and most everything else. STUPID HUMANS!! We went backwards in the Iron age!! the center of a magnet is where we belong after all that's what we are all configured with..FACT!
      Please review the works at "CORAL CASTLE, Florida. (UA-cam), He would "VIBRATE" ,, not oscillate the granite at a resonant frequency to the type stone he was working with. Granit has allot of magnetic properties given it's make up... You just need to vibrate at the correct freq. and it will become workable. Keep in mind we are talking about vibrating only the "B" field of a magnet into the rock!!! You will note at Coral Castle he also had a horizontal stone , similar to Stone Henge... All his magnetic generators were in the repel mode to maximize the "B" field.. SIMILAR TO THOSE Shown ON THE PYRAMIDS OF EGYPT.. FACT!!, THINK about it THAT'S exactly why they used copper tools!!!! You must use copper tools and any iron would totally dispute the field. Quantum Math is total B.S. E=MC2 is also total BS... E=MD. (Magnetic density). Thanks Vincenzo.. Please use your brain!! If your professor gives you any flack, have him explain the speed of magnetism. It's instantaneous.
      That's how they used the pyramids as transportation devices, inter Galaxy type transportation that's exactly why they were 8 sides to create a perfect hologram from earths magnetic field that could be used to connect interglacially

    • @jonathanjenkins3609
      @jonathanjenkins3609 11 місяців тому

      this video explanation is wrong

    • @B1g_Salad
      @B1g_Salad 10 місяців тому

      What’s wrong about it?

  • @mutthunaveen
    @mutthunaveen 4 роки тому +1

    One of the best videos in my whole life..... really awesome explanation. and quite simple and effective graphics.....

  • @SVAyouTube
    @SVAyouTube 5 років тому +13

    Please tell more about YAGI-UDA ANTENNA.
    Thank you!

    • @raziarahmat4299
      @raziarahmat4299 3 роки тому

      I live in Karachi Pakistan I like your comments thanks

  • @matteocassino3172
    @matteocassino3172 3 роки тому

    Excellent explanation and video examples! Thx.

  • @ThomasBarth86
    @ThomasBarth86 5 років тому +6

    FINALLY I understood it.
    Its not that complex, school has failed again...

  • @forkan1009
    @forkan1009 4 роки тому +1

    All love to you from Iraq 🇮🇶 Baghdad.. thank you very much

  • @shashankcs2865
    @shashankcs2865 5 років тому +4

    Sir please make video on how elctromagnetic waves converted to video , audio, pictures ........

  • @ShawonSarkar-u1t
    @ShawonSarkar-u1t 2 місяці тому

    if I say your explaination quality in word,excellent!!!

  • @user-md1qb4tw3m
    @user-md1qb4tw3m 5 років тому +4

    Respect for old good russian car at 5:33! It's LADA 2106.

    • @nicolasreinaldet732
      @nicolasreinaldet732 5 років тому

      Russia have send one of those to space.

    • @user-md1qb4tw3m
      @user-md1qb4tw3m 5 років тому +1

      @@nicolasreinaldet732 I didn't know that. Where can I read about it?

    • @nicolasreinaldet732
      @nicolasreinaldet732 5 років тому

      @@user-md1qb4tw3m My fault it wasnt to space it wased only to the stratosphere. www.bbc.com/news/blogs-news-from-elsewhere-48615344

  • @natecoley160
    @natecoley160 Рік тому

    the most understandable visualisation i've ever seen

  • @GTI099
    @GTI099 5 років тому +3

    Great!!! I would say “easy about difficult” This material would be explained in a so difficult mode in the books, with your explanation even a monkey can understand

  • @Anonymous-qh3hz
    @Anonymous-qh3hz 4 роки тому +1

    You just saved us a class lecture lol thanks for your contribution

  • @shahid3520
    @shahid3520 5 років тому +6

    0:33 then why magnetic loop antennas work ?

  • @samwinchester7844
    @samwinchester7844 5 років тому +1

    Thanks for the great video. I studied electronics in undergrad but never learned what's shown here. Excellent video!!!

  • @mizaro0511
    @mizaro0511 4 роки тому +9

    i cant imagine how humans came up with this idea

    • @km4hr
      @km4hr 4 роки тому +2

      Humans didn't come up with this, God did! Humans try to comprehend and apply what God made in new and useful ways. Science and God are not incompatible. Humans create nothing, we just apply what was created to solve problems. Hope I don't wake up the atheists.

    • @rtfacts5317
      @rtfacts5317 3 роки тому +1

      @@km4hr don't pee on the glory of great scientists who contributed greatly to this world by inserting god everywhere.

    • @km4hr
      @km4hr 3 роки тому

      @@rtfacts5317 Pee on scientists? I'm a retired engineer with a couple of degrees. I have the greatest appreciation for what man has accomplished. But it's nothing compared to what God created. In fact the comparison is ridiculous.

    • @rtfacts5317
      @rtfacts5317 3 роки тому

      @@km4hr it's highly likely that lucifer is the true god and jesus is the devil who deceived us.

  • @akhileshsarda9770
    @akhileshsarda9770 3 роки тому

    Explanation is so simple that anybody can become a communication enginner just watching ur videoes..

  • @mathaithomas3642
    @mathaithomas3642 5 років тому +4

    I opened an old LNBF and found no electronic component but only 2 small copper wires!

    • @SciShorts
      @SciShorts 5 років тому +2

      It probably doesn't have that signal processing unit inside which filters and amplifies the signal. You probably have the digital tv box which does the job.