Aomway Patch ANT007B
Last updated 19 March 2017
Another patch from Aomway which seems at least as dubious as the ANT005. It's supposed to be circularly polarized, but the design seems to be 100% symmetrical, which is physically impossible. It shares many of the design flaws of the ANT005, so read my discussion about that one if you want to know the details.
It's a 2x2 array of linearly polarized patches, so I suspect that like the ANT005, this thing is actually linearly polarized.
VNA measurements
SMA version
RP-SMA version |
Matching actually looks fine on this one, but I have serious doubts about the radiation pattern. |
Comments
This page used to have a comment section. It's closed now; what remains are the questions I answered.
Michiganbroadband · 30 August 2019, 18:33
I'm curious about the total dropout below -30 on the one antenna.
Is that real?
And why would the other antenna not have a similar dropout?
Maarten Baert author · 11 September 2019, 11:20
It is real but it's coincidental. Due to constructive and destructive interference it is possible that at some point, all reflections cancel each other out, and the total reflected signal will be almost zero. But since this is at -30dB we're talking about a difference of 0.1%, which is not significant. Basically it's noise, it will be different for every unit due to manufacturing tolerances.