Recently, I have assembled several LZ1AQ preamps on FR4 1.5mm 2-sided PCB. In the album below, you can find the photos of the assembled preamps, graph of measured and modeled gain, photo of dummy aerial (aerial simulation network) and circuit of dummy aerial.
/g/loopantennas/album?id=296366In case the link above doesn't work, look for the album "9W2LC's LZ1AQ amp". I have a problem with the simulation not matching the measurement. So, I am looking for any help / suggestion. This is still a work-in-progress because I haven't measured the P1dB and OIP3.
Digression: Not active loop, but I am searching for measurement of the PA0DRT & ON1BES miniwhip for the purpose of validating my simulation. I will be grateful if someone can point to where the data is available. Thanks.
73,
Chin-leong Lim, 9W2LC.
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W2LC's LZ1AQ amp
