Please turn off "Stable Volume" in the video playback setting (the first menu item after clicking the gear icon) as for some reason, this new TH-cam playback feature made the video much noisier than usual.
Hey, thanks for the tear down. As an RF guy I’m not easily impressed by most antenna designs, but this one definitely makes the cut. I can’t even intuitively wrap my head around this antenna. This “S-shape” with two capacitive parasitics over the driven element and the “wrap-around ground” are novel. Or at least weird. I’m sure it’s no coincidence the S11 is clean across the measured bands, but now the radiation pattern is of course the big unanswered question. Even simple wideband antennas show freakishly complex patterns over more than one octave, and this one covers three and then some.
Hello, you can also teardown and analyze the Poynting 4×4 MIMO XPOL-24 antenna? I don’t understand why they made Сell 1 polarization: Vertical & Horizontal, and Сell 2: ±45 °, why they didn’t do Cell 1: ±45 °and Cell 2: ±45° as it looks in Waveform. What is the essence of such a decision? I thought that MIMO 4x4 technology works well only on antennas located at an angle of ±45°
I'd like to see a comparison between this and 4 separate traditional antennas mounted on a roof, similar to what is used internally by the 4g/5g router to begin with. Also my old Acer Laptop had an internal antenna that looked exactly like this waveform and covered most of the inside of the case. The design is nothing new and certainly not expensive or complex to build. In my experience with antennas the difference in results between complex designs and minimal designs is very minute if at all. Like using a thin stripped wire tie stuck in the coaxial input on the tv by itself resulted in the same 46 ota channels as the expensive boosted ota antennas, which was also the same as the $2 rabbit ears, there's only a tiny window of circumstances where the difference might be really noticeable.
You should find Andrew Mcneil’s channel. His work on microwave antenna design and reverse engineering is excellent. And always backed up with scalar or vector analysis.
Please turn off "Stable Volume" in the video playback setting (the first menu item after clicking the gear icon) as for some reason, this new TH-cam playback feature made the video much noisier than usual.
Hey, thanks for the tear down. As an RF guy I’m not easily impressed by most antenna designs, but this one definitely makes the cut. I can’t even intuitively wrap my head around this antenna. This “S-shape” with two capacitive parasitics over the driven element and the “wrap-around ground” are novel. Or at least weird. I’m sure it’s no coincidence the S11 is clean across the measured bands, but now the radiation pattern is of course the big unanswered question. Even simple wideband antennas show freakishly complex patterns over more than one octave, and this one covers three and then some.
Thanks for your insight Bert!
Hello, you can also teardown and analyze the Poynting 4×4 MIMO XPOL-24 antenna?
I don’t understand why they made Сell 1 polarization: Vertical & Horizontal, and Сell 2: ±45 °, why they didn’t do Cell 1: ±45 °and Cell 2: ±45° as it looks in Waveform.
What is the essence of such a decision?
I thought that MIMO 4x4 technology works well only on antennas located at an angle of ±45°
I'd like to see a comparison between this and 4 separate traditional antennas mounted on a roof, similar to what is used internally by the 4g/5g router to begin with. Also my old Acer Laptop had an internal antenna that looked exactly like this waveform and covered most of the inside of the case. The design is nothing new and certainly not expensive or complex to build. In my experience with antennas the difference in results between complex designs and minimal designs is very minute if at all. Like using a thin stripped wire tie stuck in the coaxial input on the tv by itself resulted in the same 46 ota channels as the expensive boosted ota antennas, which was also the same as the $2 rabbit ears, there's only a tiny window of circumstances where the difference might be really noticeable.
I watch your videos, Mr. Wong, but I understand almost nothing. At least they are good for my humility! I wish I had your knowledge.
You should find Andrew Mcneil’s channel. His work on microwave antenna design and reverse engineering is excellent. And always backed up with scalar or vector analysis.
This is some witchery! What a kick arse antenna, that bad boy would cover everything from LoRa to 5G!
Ha ha, I design a lot of antennas, and that’s a really impressive antenna.
would you be able to test out WaveForm MIMO 4x4 Log Periodic External Antenna at some point in the future?
The Dark Arts.....cheers.
squeak :)
@@Chriva Squeak !!
@@andymouse Happy to see we like the same stuff. :D
@@Chriva Yep, its always nice to see a familiar name in our big Maker Techy family !
Dude check out the litevna. It runs up to 6.3ghz. About $100.
I will receive one soon. Will measure the upper band once I get it.