Together with a lot of other stuff I ordered the cheap HK 2.4GHz patch antenna and would like to know what frequency it's tuned to?
http://www.hobbyking.com/hobbyking/s...dProduct=15283
Spec.
Cable Length: 1m
Plug: SMA (male)
Size: 180x210mm
Sensitivity/Gain: 14dBi
Horizontal Plane: 110degree
Vertical Plane: 45degree
UV protected ABS
Last edited by boopidoo; 9th March 2011 at 06:55 AM.
And here's the dimensions...
The top part is the active element and the bottom is the ground element I guess but this is not connected to the rear plate as I thought it would.
Last edited by boopidoo; 9th March 2011 at 06:59 AM.
it's probably tuned to 2450 as most of the "commercial" 2.4GHz antennas. I'm not good with the maths, though, so this is just a guess.
The only way to know for certain is to run it through an antenna analyzer or possibly even a spectrum analyzer. Do you know anybody in the cellular tower construction industry? Most crews have antenna analyzer gear. OR...your could go by a local tech school and see if their RF lab would be kind enough to "Sweep" it for you. I have purchased antennas that claim to work for a specified frequency, but when swept, it shows to be most effective at a higher or lower frequency. Just a thought......
I agree with Avenger. There really is no way to tell without testing it. It appears to be a microstrip fed parallel patch. The two parallel plates on the top for a microstrip transmission line.
-Alex
Thanks! I have some colleagues that have a nice lab, in which I've RFI-tested some of my models before. But since I'm currently on parental leave until august I guess it'll take some time until I can do that. I will use some of my abundant extra time (yeah right) to make some other antennas though.
I also bought that antenna.
Boopidoo did you get to any conclusion about the freq.?
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