Biquad antenna construction: directional biquad antenna with 11dBi gain
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- Опубліковано 22 жов 2024
- How to build your own biquad antenna and increase the range of your Wi-Fi connection
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This design works really well! I'm on the internet in my cellar lab now, a place I didn't have reception before. Thanks!
You sir deserve much more suscribers, it's amazing the care that you give to these Little antenas, and they are that powerful in return, keep it going Andrew! cheers! Love your shop. Have a good day.
I have built this design, set to 2100Mhz and connected it to the 3G dongle I use to access the internet on my laptop. It added 30% more signal, so thank you very much for such a thorough tutorial.
I would like to ask you if it can also be adapted to use with a 4G router, namely the Huawei E5172. I believe this connected works at either 800, 1700 or 2600 MHZ, which I have to confirm.
I also plan to build your double helical 5.8GHz for the video receiver of my little quadcopter which already has a "cloverleaf" as tx antenna.
Wonderful tutorial. Very clear and a clever use of common materials.
Great video Andrew... Is the 30.7mm measured between the inner surfaces of the elements or centre to centre. Andy - G7MJV
What about 1:1 baluns? Some antennas needs them for better signal strength + quality, but some not (they actually works with built-in balun). There are videos on youtube, presenting radio reception quality with balun ON and OFF. If there is no coax cable (antenna directly on AP), no balun is needed? My feedline (1m coax cable between AP and BiQuad) is transmitting signals in all my room = I need balun. My choke balun (4 turns coil) of my 1m coax cable between AP and BiQuad seems to be working fine, signal level behind BiQuad's reflector is lower, it is transmitted far away as desired. This BiQuad is glued together and can't be modified, but I think my (ugly) broadband choke balun works. With another BiQuad I would like to try something smaller, "bazooka" - sleeve balun or Split conductor balun. Is there any higher gain (dBi) with balun feeding BiQuad, Cantenna or simple 11dBi parabolic curve patch antenna (62mm circular plate at 15mm distance from 100x100mm parabolic reflector)?
Andrew can it be made as an infinity loop because that's what I'm going to try if you could pass me along some measurements that would be awesome man. As always keep making your videos and you rock...
Hi from France and thanks for your videos. I've been watching few of them and didn't find any answers to my questions. For instance I can't find what is the maximum expected bandwith for a biquad antenna. In every video you focus on Wifi signals within a 20 Mhz range.
I plan to build such an antenna for cell phone reception. The house where I live is a bit strange. At 5 meters High, I've got a strong signal. But 5 meters downside, where is my living space, I have nothing. Due to the configuration of the house, i don't have line of sight with cell tower in my kitchen. I know repeaters exist, but too expensive for my budget.
My first question is : Do you think I can apply the biquad antenna for cell phone reception ?
My second question is : would it be possible to build a PASSIVE system, I mean building an antenna , running a coax cable down to 5 meters in the kitchen, of course attached to an other antenna in my living space.
Here where I live, the best signal is the 800 Mhz band, from 791 to 821 in download, and 832 to 862 Mhz for Upload. Supposing I build , with the aid of calculators online, a biquad in the central frequency (826 Mhz), do You think it could work ?
Maybe second possibility would have better chances to succeed. My carrier' signals are between 801-811 Mhz (Download) and 842 to 852 Mhz (Upload). Would it be better to built 2 passive systems, the first focusing on Download / center frequency 806 Mhz, and the second one on upload / center frequency 847 Mhz.
If only people ( and above all my clients) could call me, it would be a great success.
Please forgive me for my english, it's not my native language.
Hope to obtain answers from you, it is very important to me.
Thanks again for your videos.
You don’t connect it to a router. You use a wifi card like the Alfa AWUS036NH . It is one of the most popular cards around with a RP-SMA Connector. I do show you the difference in db, gain and how many more access points it picks up over a greater distance.
Nice tutorial. Thanks!
Could you make this antenna have 22 dBi gain ?? Would that be the limit to max gain Sir ??
Hi Andrew, very good info. Thanks. I have a Lenovo desktop and the antenna is internal. Is there any way to connect this byquad to it?
thanks.
Hey can I use that antenna outside? Can I connect a 20 meter cable and place it outside?
Hi. What kind of BNC connector did you use? Can you give me a link? Thanks
I wish I had the tools to make it. I tried with pliers bending some thick wire into 8 shape, which i did and i actually got a signal without any other things, just wire in infinity shape and a string. I have no idea how these things work and why size matters, and measurments. What if you multiply those numbers by 4 and make a 4 times bigger antenna? Is it 4 times more powerful? My amateur antena got a signal and it was a turd, i mean just handcrafted wire, it sucked yeah but it got a signal. So i dont understand why are things the way they are, what shape does to signal, what if the router is not pointing in your direction, what if the source of wifi is at 90degree angle?
guess I should read the comments that people leave I just left a comment above about making an infinity loop and you said that you tried it and did it congrats man
When Im printing the template it seems smaller then it appears on video?
I have a question. Why did you solder it to reflector and in the center of connector? Why not just in the centar? I saw another video with just in the center of connector. What is better option? Thank you for your video. Great antenna.
i have the same question! i didn't found the answer. Did you found?
Mihai Nicolae No. I think he is not reading comments.
Veritech that is bad. :)))
can i use aluminium foil on plastic shit for reflector
Don't know to much about this kind off stuff so this might sound stupid. Could I use this as a directional antenna for a small uhf radio?
The wavelength for UHF is completely different so it would not work
Thanks
wow this is awesome. i dont have much money now but how much would it cost to get one of these amazing antennas?
+Russ Krieg Sorry I don't sell them at the moment but the biquad is super easy to build
Do you sell any of your antennas
Noone shows how you connect this antenna to PC ot laptop ??
There are many ways to connect an external antenna. The simplest way is to buy a Alfa-AWUS036H. If you want to attach it to a router I have a few router mods on my channel yes they are all routers from UK ISP providers but most routers are all the same. I have also modified a common usb wifi stick to take an external antenna.
Omar Elouaddi LMR 195 and I try to keep it to no more than a meter long for portable applications.
well said
Great! :)
20 dbi dagram uploads
?????????????????
Send me one of them ! Shit.... -_-'
hhhh you are the best
Thanks for sharing Andrew. I love watching your videos, you make such cool antennas out of things around the house. I'm going to attempt this build and I'm documenting it. Follow along at: andrewtjohnson.me/biquad-wifi-antenna/