AnsweredAssumed Answered

Log detector

Question asked by rlior on Jun 22, 2015

Hi,
I am using LOG_DET in my RF design schematic , and the detection is not acting as it should .
It should be acting as that the Vdc output is relative to all spectrum input power, but when I input two signals with the same frequency and , it always add them up without consideration of the phase they arrive . 
for example , if I enter two CW tones into a combiner with opposite phases, they supposed to cancel each other , and this in fact what happens when measuring CP , but when connecting to a LOG_DET , it adds them up together , without considering the phase at all !

does anyone has a workaround or a solution to that problem ?

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