I've been hesitant to pull the trigger on your original bi-quad yagi in your store, and now I'm glad I waited. I'll be anticipating this little guys release in its final iteration!
Great channel man!!! I have bits and pieces of knowledge of a biquad and I tried building one a few years back but never finished before moving onto other projects. You seem to have a great understanding of the mechanics involved in making antennas. For those of us lacking ability to take some college courses, would you be willing to shoot a theory video regarding antennas and how they relate to wifi especially? I'd love to learn some of the stuff you clearly know.
I'm curious about that the distance between parasitic elements should be 17mm apart and the spacers are 17mm + thickness of pcb 2mm? =19mm. Amazing and unique design.
Interested in Replicating it to GSM/LTE 800 900MHZ ? any calculators available for a design like yagi calculators, give the frequency range and get the design specs?
Hello Andrew, great vid and EXCELLENT construction design. A thought in terms of production. First piece is always the most costly. Your using two boards to construct one antenna. By re arranging things you should be able to produce 9 or 10 antennas from 9 boards..i'll explain. Using element 1 as an example. 1 board has only element 1 artwork. Laid out correctly, as close as possible to minimize waste, it looks to me that you can get 9 or 10 out of 1 board. Following this with all other elements, you shold yield 9 or 10 from 9 boards. Ran into same situation while designing attenutor/preamps for military jamming systems. Operating from 9kc to 1Ghz, in one band, with 70-80db dynamic range...lots of fun. Best regards, Carl M. Thompson.
I saw in your PDF , distances in mm and i don't understand from where to where is it. Can you give more details about it ? Driven element 1 31.5mm Element 2 30.5mm Element 3 30mm Element 4 29.5mm
great, I have never seen a stacked bicuad like this....... which do you think would get greater range? this or a smiliar sized cantenna? I am looking for something to get some decent range in an open area from an elevated position. A word about production, when you produce more than one at a time, you can avoid waste by simply using the waste area to make more elements for other models. Even though the elements are different sizes, you could perhaps produce two boards at a time and have no waste?
What is the reason for the 5 millimeter smaller size of the parasitic elements going down in size from the active element ??? I am wondering if you would use silver plated copper driver element make some difference in increased efficiency ??? Good day Sir too. vf
I recently bought a Biquad Yagi antenna of yours and loving it. but id like to squeeze as much power as i can out of it. what would be the maximum about of elements i could add on to it with out it negatively affecting the signal
Hello Andy, would you mind making antennas for HD TV i have been trying to make for local HD channels and achieved some success but I know you've smart with antennas and TV antennas would be a banana for you. Thanks for the biquad yagi wifi antenna. It's very challenging keeping with your inventions of different ways to make wifi antennas. Thanks, man, you're brilliant.
Andrew is there a reason for the 7,8,9 and 7.8.9 on sheet two or was that to just fill up sheet two? great job I am going to build one now got all my pcb stuff ready and already built the air antenna
Have you made this antenna for 2 meter satellite work. It would be better than a regular yagi. Because the operator wouldn't have to keep flip-floping it vertical and horizontal.
Would there be any major change in latency with different types of antennas for distant APs? If there is a best design for reducing latency that would be of great interest...
Great job as usual Andrew! Been waiting for this larger version. I am planning to add 2 biquad-yagi antennas to my Signalking 999wn adapter which has dual dipoles mounted at a distance of ~14cm apart. If I replace the current dipoles with your biquad-yagi design, would I need to add extra cable to increase spacing between the 2 biquad-yagis or perhaps mount each biquad-yagi one on top of the other? I hope to make this as an alternative/replacement to my own DIY buiky 28" by 18" cylindrical parabolic reflector (based on the windsurfer) driving a Signalking 999wn wifi adapter with dual 5dbi-dipoles mounted vertically forming a straight line (one dipole above the other, pointing out in opposite directions, with the circuitry in the centre) so as to have both dipoles at the focal point of the reflector. Wish I could post a picture here to explain clearer. The alternative would be to replace one 5dbi dipole with a 9dbi dipole but leaving the other 5dbi dipole without support from the reflector (so as not to make the reflector even bigger and needing to add extra cabling). I suspect this 9dbi alternative would perform better since my adapter cannot combine/enhance signals received by multiple antennas. I also suspect this mounting of the dipoles pointing in opposite directions reduces performance due to signal cancellation as compared to dual dipoles mounting vertically side by side. Any suggestions or comments would be much appreciated. Looking forward to more designs from you.
I think you're doing a fantastic job with these antennas. They will be a huge help for people in the RC market among others. I am definitely interested in purchasing a 2.4 GHz. Will you please provide information as to your website or how I can go about purchasing one of these antenna from you. I am in the US, more specifically Michigan. I would definitely look into patenting your design, if you have not done so already. I'm sure there are certainly people that would be happy to provide support to you in a partnership type situation if you needed financial support. This market is vast and could provide a lucrative opportunity for someone with your obvious skill sets. Thank you very much and keep up the good work! Sincerely, Scott Chambers.
Thank you Andrew for nice video, I have a small question. Would the width or the diameter for the conductive wire(or tape) matter the gain?, I 'm planning to cut the plate copper tape into the biquad shape or use the thinner copper wire. Personally I don't think the width or the diameter would really affect the performance but want to check this out.
Does this antenna works with 4g lte signal or only with Wifi. Again can it also transmit a signal or it only works as a receiver? lastly the link to the shop does not work???
And 17 mm for biquad seems to be a constant value, no matter the size of the biquad, right? The guy who gave me the link to your channel used your antenna (Let me call it McNeil antenna;) used biquad for digital tv signal reception and the distance btw. parasitic elements was 17mm as well!
I'm building a network auditing tool. I'm working on a proto type... I hope to purchase this model from you a few to start and hopefully more in the future if my plan comes together...
+bigmac turd Hi Bigmac hope your project works out sound interesting. I have now ironed out a few bugs with the long rang biquad yagi so should be available soon
Dear Andrew, Thanks for the great videos. :-) Can you please add the long range yagi to your store? I currently have a 15db model for Hawking (HAI15SC) The cantenna in the store is less then 15 and the Yagi in your store is 18 because it has fewer elements then this one. So, I would like to request that you either add this one to your store or sell us the circuit boards to allow us to make our own without needing to etch them ourselves. Best wishes, Robert Bourbonnais
Well done Andrew, yet another great antenna video. I have just about reached the limit of video range with my quadcopter using a 5.8GHz system with one of your biquad yagi's on the ground station having got out to 4800ft away so I'm moving to a 2.4GHz system for which this long range antenna may fit the bill for the A/V receiver. Would it be possible to purchase a kit of parts to build one up myself? I might even be able to video the test flight results. Using this style of antenna on the quadcopter is impractical, needs to be more compact, so which do you think would be better for distance, a circular polarised or linear polarised ? (omnidirectional biquad)?
I meant to say for a non-biquad Yagi antenna, You did include a template on your Yagi building video (19 element long range), but I do not have a very reliable printer so I was curious at what the exact measurements were since they were never mentioned.
+mbielchris Hi no they still will not work if you want to build just a Yagi look at my last video. You could use those measurements and add some more parasitic elements.
+CrypterMKD I will post some info in a few days as I need to hook it up to the analyser and run some tests and it takes time to set up. I will post a short video up later showing it working over a much longer distance. As for a Yagi from ebay, save your money they are rubbish.
I'd like to build one for 2.3 Ghz frequency as my ISP use this frequency for 4G LTE. Can anyone help me to redesign this antenna for that frequency? Any help is very appreciated
Thank you for the plans. But i have one question. Do i have to remove the copper rings that remain around the drill holes on each element? i have drilled them with a 4mm drill and there is some copper still around. Do you think it will have a negative influence on the antenna performance?
+Aron Gatt I have been developing this over the last 6 months as I was not happy with its performance. There will be a new video soon but the new design is very different to this and I will explain in more detail why.
I could really use a few of these. for demonstration and pentesting... A raspberry pi and 3 alfa cards equipped with 3 of these antennas would make a for a effective long range, remote exploit demo... A drop box !
+bigmac turd I sent one to my friend who works for a small pentesting company and they have ordered 8 more as they like how small it is. My friend used it inside his backpack and it was still more powerful than the yagi's his company use.
+andrew mcneil i have downloaded your pdf document and printed out the 4 pages you provide... im measuring your driven element (1) i think i am not printing things properly... from black line to black line... the inside of the element should read 30.5 ? or the outside of these black lines should read 30.5?
Would using two of these antennas on the same wireless adapter significantly increase performance? Adapter in question: www.amazon.com/gp/product/B013CQPEKO?psc=1&redirect=true&ref_=ox_sc_act_title_8&smid=A3SXLDKHWME2R6
Hello Andrew . How to use the distance between the elements, taking into account the thickness of the fiberglass. I made 2 versions in the picture, which one is correct? smages.com/images/yagi.jpg
@@sergd8785 да не учитывая толщину текстолита, но спустя 4 года такие уже никто не делает, т.к текстолит имеет не нулевую радиопроницаемость, сейчас усовершенствованная это пушка из дисков металла., есть калькуляторы и много видео об этом. По типу bdm-2
Could someone upload these to a PCB production site which allows sharing like oshpark.com/shared_projects ? Cheers! ps: I'd totally get them directly from you once u got them in your shop again andrew, but you are all sold out on 2.4ghz biquads atm :-(
+George Gardinier Hi George it is hard to see as his hand is shacking to much but it looks like a cross between a spiral arm antenna and bowtie. Now there are dual band antennas but they are mediocre at best and just used for a specific application. So I would ask why would you need a dual band antenna for FPV? It just seems pointless. I would also question its claim to be circular polarisation as a spiral arm needs to be feed using a delay line if it's not it is just a dog leg dipole. How much do they cost? If it's not to much I will get one as I have some dual band dipoles and I could make a video to explain the concept in more detail.
+George Gardinier Ok just been over to the Foxtech website and Bruce has got it wrong they are not circular polarized so they are in fact a bowtie and a dog leg dipole, www.foxtechfpv.com/dualband-mushroom-antenna-24ghz-58ghz-sma-inner-pin-p-1601.html
Great video! I've been wondering how to make a Yagi-type antenna out of Biquad, coz I prefer biquad for its efficiency and simplicity. You might have seen the video about a patch-yagi wi-fi gun. I wonder which one would be more efficient. ruclips.net/video/Nk-nj_BwoBE/видео.html
Hello Andrew, great vid and EXCELLENT construction design. A thought in terms of production. First piece is always the most costly. Your using two boards to construct one antenna. By re arranging things you should be able to produce 9 or 10 antennas from 9 boards..i'll explain. Using element 1 as an example. 1 board has only element 1 artwork. Laid out correctly, as close as possible to minimize waste, it looks to me that you can get 9 or 10 out of 1 board. Following this with all other elements, you shold yield 9 or 10 from 9 boards. Ran into same situation while designing attenutor/preamps for military jamming systems. Operating from 9kc to 1Ghz, in one band, with 70-80db dynamic range...lots of fun. Best regards, Carl M. Thompson.
I've been hesitant to pull the trigger on your original bi-quad yagi in your store, and now I'm glad I waited. I'll be anticipating this little guys release in its final iteration!
Very cool,
the homemade kit as .pdf is really fun experimenting.
Thank you Andrew!
Andrew, Another great video. Thank you for sharing.
A very nicely made product and well explained video. I've learnt so much from your channel.
Great channel man!!! I have bits and pieces of knowledge of a biquad and I tried building one a few years back but never finished before moving onto other projects. You seem to have a great understanding of the mechanics involved in making antennas. For those of us lacking ability to take some college courses, would you be willing to shoot a theory video regarding antennas and how they relate to wifi especially? I'd love to learn some of the stuff you clearly know.
Awesome video, keep them coming.
Amazing performance for such a small antenna.
Amazing Andrew! Thanks for sharing!
Absolutely OUTSTANDING. Great job!
your channel is amazing. your work is beautiful. thank you for what you do!
Wooo! This is getting serious now! Good job Andrew.
+djdrwatson Thanks it does look good doesn't it :-)
+andrew mcneil Yes! I hope the costings work out well.
Woah!!!! and a nice .pdf too!!!!
When will this one be for sale and for how much?
Great job, gotta love a true craftsman.
I'm curious about that the distance between parasitic elements should be 17mm apart and the spacers are 17mm + thickness of pcb 2mm? =19mm. Amazing and unique design.
Interested in Replicating it to GSM/LTE 800 900MHZ ? any calculators available for a design like yagi calculators, give the frequency range and get the design specs?
sir andrew, the position of the bi quad? is this horizontally polarized or vertically polarized, thx
Hello Andrew, great vid and EXCELLENT construction design. A thought in terms of production. First piece is always the most costly. Your using two boards to construct one antenna. By re arranging things you should be able to produce 9 or 10 antennas from 9 boards..i'll explain. Using element 1 as an example. 1 board has only element 1 artwork. Laid out correctly, as close as possible to minimize waste, it looks to me that you can get 9 or 10 out of 1 board. Following this with all other elements, you shold yield 9 or 10 from 9 boards. Ran into same situation while designing attenutor/preamps for military jamming systems. Operating from 9kc to 1Ghz, in one band, with 70-80db dynamic range...lots of fun. Best regards, Carl M. Thompson.
Hello Andrew . Why datasheet PDF 7,8,9 elements in duplicate ? To save the material foil PCB ?
I saw in your PDF , distances in mm and i don't understand from where to where is it. Can you give more details about it ?
Driven element 1
31.5mm
Element 2
30.5mm
Element 3
30mm
Element 4
29.5mm
great, I have never seen a stacked bicuad like this.......
which do you think would get greater range? this or a smiliar sized cantenna?
I am looking for something to get some decent range in an open area from an elevated position.
A word about production, when you produce more than one at a time, you can avoid waste by simply using the waste area to make more elements for other models. Even though the elements are different sizes, you could perhaps produce two boards at a time and have no waste?
What is the reason for the 5 millimeter smaller size of the parasitic elements going down in size from the active element ??? I am wondering if you would use silver plated copper driver element make some difference in increased efficiency ??? Good day Sir too. vf
Andrew. Could you explain a bit more about the tests that you perform? I am not familiar with this stuff. Is there a video covering the test methods?
Hi Andrew
What's the spacing between elements as a relation to the wavelength?
Hm, i wonder if this also would work on a double biquad to make a double biquad yagi ;)
What is the performance difference between this one and the double biquad long range antenna?
Have you thought of doing a double bi-quad yagi or adding some more fractals into your elements on this yagi?
Does making the square shaped parts go parallel with the rest of the antenna design affect it's ability to function properly?
When are you going to will produce this andrew ? I need one and thank you .
I recently bought a Biquad Yagi antenna of yours and loving it. but id like to squeeze as much power as i can out of it. what would be the maximum about of elements i could add on to it with out it negatively affecting the signal
Hello Andy, would you mind making antennas for HD TV i have been trying to make for local HD channels and achieved some success but I know you've smart with antennas and TV antennas would be a banana for you. Thanks for the biquad yagi wifi antenna. It's very challenging keeping with your inventions of different ways to make wifi antennas. Thanks, man, you're brilliant.
Andrew is there a reason for the 7,8,9 and 7.8.9 on sheet two or was that to just fill up sheet two? great job I am going to build one now got all my pcb stuff ready and already built the air antenna
Have you made this antenna for 2 meter satellite work. It would be better than a regular yagi. Because the operator wouldn't have to keep flip-floping it vertical and horizontal.
Looks great ! Need to build my self.
Will this perform better if i use a windsurfer as a reflector? Maybe a dumb question...
Thanks!!!
Would there be any major change in latency with different types of antennas for distant APs? If there is a best design for reducing latency that would be of great interest...
Great job as usual Andrew! Been waiting for this larger version.
I am planning to add 2 biquad-yagi antennas to my Signalking 999wn adapter which has dual dipoles mounted at a distance of ~14cm apart. If I replace the current dipoles with your biquad-yagi design, would I need to add extra cable to increase spacing between the 2 biquad-yagis or perhaps mount each biquad-yagi one on top of the other?
I hope to make this as an alternative/replacement to my own DIY buiky 28" by 18" cylindrical parabolic reflector (based on the windsurfer) driving a Signalking 999wn wifi adapter with dual 5dbi-dipoles mounted vertically forming a straight line (one dipole above the other, pointing out in opposite directions, with the circuitry in the centre) so as to have both dipoles at the focal point of the reflector. Wish I could post a picture here to explain clearer.
The alternative would be to replace one 5dbi dipole with a 9dbi dipole but leaving the other 5dbi dipole without support from the reflector (so as not to make the reflector even bigger and needing to add extra cabling). I suspect this 9dbi alternative would perform better since my adapter cannot combine/enhance signals received by multiple antennas.
I also suspect this mounting of the dipoles pointing in opposite directions reduces performance due to signal cancellation as compared to dual dipoles mounting vertically side by side. Any suggestions or comments would be much appreciated.
Looking forward to more designs from you.
very good thank you. but how to make antenna 5.8 ghz for fpv
I think you're doing a fantastic job with these antennas. They will be a huge help for people in the RC market among others. I am definitely interested in purchasing a 2.4 GHz. Will you please provide information as to your website or how I can go about purchasing one of these antenna from you. I am in the US, more specifically Michigan. I would definitely look into patenting your design, if you have not done so already. I'm sure there are certainly people that would be happy to provide support to you in a partnership type situation if you needed financial support. This market is vast and could provide a lucrative opportunity for someone with your obvious skill sets. Thank you very much and keep up the good work! Sincerely, Scott Chambers.
Can I substitute 1/4 inch copper tape for the etching.?
And, is this a good antenna for dji phantom 2.4 ghz fpv. ?
Thank you Andrew for nice video, I have a small question.
Would the width or the diameter for the conductive wire(or tape) matter the gain?, I 'm planning to cut the plate copper tape into the biquad shape or use the thinner copper wire. Personally I don't think the width or the diameter would really affect the performance but want to check this out.
could this be mounted to a parabolic reflector and if it could where would you measure the focal point to?
really nice work
Does this antenna works with 4g lte signal or only with Wifi. Again can it also transmit a signal or it only works as a receiver? lastly the link to the shop does not work???
How wide are the traces that represent the biquad , they look to be 5mm or so.
Why it is not necessary to plug electrically all the boards eachother?
G’day mate. Can this be added into a parabolic replacing the original central piece giving it more distance?
And 17 mm for biquad seems to be a constant value, no matter the size of the biquad, right? The guy who gave me the link to your channel used your antenna (Let me call it McNeil antenna;) used biquad for digital tv signal reception and the distance btw. parasitic elements was 17mm as well!
Does this require external power if one tries to upgrade from a normal antenna?
hay i what to ask how you conceded all the other to the the first peas as you go up
when you will produce this andrew ?
Will you be putting this long range yagi in your shop? I saw that the shorter one is out of stock :-\
I'm building a network auditing tool. I'm working on a proto type... I hope to purchase this model from you a few to start and hopefully more in the future if my plan comes together...
+bigmac turd Hi Bigmac hope your project works out sound interesting. I have now ironed out a few bugs with the long rang biquad yagi so should be available soon
i want to create this using copper wire tape and plastic plate hope its work
to reduce waste, create 2.4/5ghz dual band yagi. cut 5ghz elements from inside 2.4 ghz elements. also play with tesselation
hay mate just wondering if you are still selling these at all? if you are i would like to know how much they are please
How much for a bag of parts mailed to Texas? I'd rather pay you for the working kit than try to have one etched.
Dear Andrew,
Thanks for the great videos. :-)
Can you please add the long range yagi to your store?
I currently have a 15db model for Hawking (HAI15SC)
The cantenna in the store is less then 15 and the Yagi in your store is 18 because it has fewer elements then this one.
So, I would like to request that you either add this one to your store or sell us the circuit boards to allow us to make our own without needing to etch them ourselves.
Best wishes,
Robert Bourbonnais
Do you have any idea how far can this antenna can reach/gain a signal?
Have you ever tested the itelite DBS flat pannel ?
Well done Andrew, yet another great antenna video. I have just about reached the limit of video range with my quadcopter using a 5.8GHz system with one of your biquad yagi's on the ground station having got out to 4800ft away so I'm moving to a 2.4GHz system for which this long range antenna may fit the bill for the A/V receiver. Would it be possible to purchase a kit of parts to build one up myself? I might even be able to video the test flight results. Using this style of antenna on the quadcopter is impractical, needs to be more compact, so which do you think would be better for distance, a circular polarised or linear polarised ? (omnidirectional biquad)?
Yes Andrew can you help us?
Can I use the same measurements from the pdf (last page) to construct a normal Yagi antenna?
+mbielchris No you need this one: goo.gl/xpIrTi
I meant to say for a non-biquad Yagi antenna,
You did include a template on your Yagi building video (19 element long range), but I do not have a very reliable printer so I was curious at what the exact measurements were since they were never mentioned.
+mbielchris Hi no they still will not work if you want to build just a Yagi look at my last video. You could use those measurements and add some more parasitic elements.
Um for what frequencies? I had to turn this off.. very little info. Start by letting us know what band its for.
:(
Can you tell us how much dB gain does this new long-range versions have? Angle of front beam? Anything? Compared to a regular yagi bought from ebay?
+CrypterMKD I will post some info in a few days as I need to hook it up to the analyser and run some tests and it takes time to set up. I will post a short video up later showing it working over a much longer distance. As for a Yagi from ebay, save your money they are rubbish.
+andrew mcneil will you include this antenna in your shop? im not the best antenna builder =)
+TheNovum Yes but it may take a few months
+andrew mcneil thx for the reply 👍
+andrew mcneil Do you test this antenna dB gain? I wish to know the real power of this ant. I build one but strenght is weak like 11-13 dB
shared on facebook.... cool video always
I'd like to build one for 2.3 Ghz frequency as my ISP use this frequency for 4G LTE. Can anyone help me to redesign this antenna for that frequency? Any help is very appreciated
How much DB would you say this antenna has? Around 18?
Thanks for answering in advance.
+xMRavenx ..not answer..
Thank you for the plans. But i have one question. Do i have to remove the copper rings that remain around the drill holes on each element? i have drilled them with a 4mm drill and there is some copper still around.
Do you think it will have a negative influence on the antenna performance?
+xAbsim Yes I just use a sharp knife and scrap them off.
+andrew mcneil Thanks.
What use software to test this antena?
It's that works for 4G antenna?
Can i bay one Long Range Biquad Yagi Antenna from your site .
thanks for sharing!!!
only the original in shop still andrew , are these only on special order ?
would like to order one if possible
+Aron Gatt I have been developing this over the last 6 months as I was not happy with its performance. There will be a new video soon but the new design is very different to this and I will explain in more detail why.
andrew mcneil ok , looking forward to it , thanks
how much dBi have this antenna?
this for 2.4ghz?
THANKS
great video bro, when you will start selling ? i would love to order one from your shop.
+mortal4life Hi Mortal Have do do a small production run first to check the design so I am looking at a few months from now.
cant access your shop, getting error 403, im in uk do i need to use a proxy to access it?
No go in the US as well.
last-modified: 2017-12-13T14:59:06Z
Thats from a whois lookup of this domain. Looks like its been down since Dec of last year
do you know the gain of this 9 element bi quad yagi
+paul - My testing result for 1 - 9 elements is almost identical.
I could really use a few of these. for demonstration and pentesting...
A raspberry pi and 3 alfa cards equipped with 3 of these antennas would make a for a effective long range, remote exploit demo...
A drop box !
+bigmac turd I sent one to my friend who works for a small pentesting company and they have ordered 8 more as they like how small it is. My friend used it inside his backpack and it was still more powerful than the yagi's his company use.
+andrew mcneil i have downloaded your pdf document and printed out the 4 pages you provide... im measuring your driven element (1) i think i am not printing things properly...
from black line to black line... the inside of the element should read 30.5 ? or the outside of these black lines should read 30.5?
andrew mcneil how do I get one of these from you... i8igmac@yahoo.com
andrew mcneil I think I want 2
+bigmac turd Hi Bigmac the measurement is taken on the outside line.
Would using two of these antennas on the same wireless adapter significantly increase performance?
Adapter in question: www.amazon.com/gp/product/B013CQPEKO?psc=1&redirect=true&ref_=ox_sc_act_title_8&smid=A3SXLDKHWME2R6
Thank you...
Your shop appears to be down :(
Hello Andrew . How to use the distance between the elements, taking into account the thickness of the fiberglass. I made 2 versions in the picture, which one is correct?
smages.com/images/yagi.jpg
+Alexandr Tsoy The first one :-)
Спасибо большое :-)
Александр здравствуйте. Какая же всё таки правильная версия антенны? та, в которой расстояние между элементами не учитывает толщину текстолита?
@@sergd8785 да не учитывая толщину текстолита, но спустя 4 года такие уже никто не делает, т.к текстолит имеет не нулевую радиопроницаемость, сейчас усовершенствованная это пушка из дисков металла., есть калькуляторы и много видео об этом.
По типу bdm-2
thanks my man* thanks*
*I N C R E D I B L E !!!* Good, very good idea! ;)
diminishing returns
Could someone upload these to a PCB production site which allows sharing like oshpark.com/shared_projects ?
Cheers!
ps: I'd totally get them directly from you once u got them in your shop again andrew, but you are all sold out on 2.4ghz biquads atm :-(
Actually, OMG, Actually
ruclips.net/video/W4L8IygU2k0/видео.html with your experience, does this antenna work well or have you made one, many of us wonder if it is any good
+George Gardinier Hi George it is hard to see as his hand is shacking to much but it looks like a cross between a spiral arm antenna and bowtie. Now there are dual band antennas but they are mediocre at best and just used for a specific application. So I would ask why would you need a dual band antenna for FPV? It just seems pointless. I would also question its claim to be circular polarisation as a spiral arm needs to be feed using a delay line if it's not it is just a dog leg dipole. How much do they cost? If it's not to much I will get one as I have some dual band dipoles and I could make a video to explain the concept in more detail.
+George Gardinier Ok just been over to the Foxtech website and Bruce has got it wrong they are not circular polarized so they are in fact a bowtie and a dog leg dipole, www.foxtechfpv.com/dualband-mushroom-antenna-24ghz-58ghz-sma-inner-pin-p-1601.html
Great video! I've been wondering how to make a Yagi-type antenna out of Biquad, coz I prefer biquad for its efficiency and simplicity. You might have seen the video about a patch-yagi wi-fi gun. I wonder which one would be more efficient. ruclips.net/video/Nk-nj_BwoBE/видео.html
Hello Andrew, great vid and EXCELLENT construction design. A thought in terms of production. First piece is always the most costly. Your using two boards to construct one antenna. By re arranging things you should be able to produce 9 or 10 antennas from 9 boards..i'll explain. Using element 1 as an example. 1 board has only element 1 artwork. Laid out correctly, as close as possible to minimize waste, it looks to me that you can get 9 or 10 out of 1 board. Following this with all other elements, you shold yield 9 or 10 from 9 boards. Ran into same situation while designing attenutor/preamps for military jamming systems. Operating from 9kc to 1Ghz, in one band, with 70-80db dynamic range...lots of fun. Best regards, Carl M. Thompson.