johnny_b4e
Newbie level 5
So, I was searching for typical speed radar circuits and came a cross this:
I can't seem to understand how it can detect (measure) level of RF signal.
I guess, C1 with traces to chip forms antenna matched for desired radar frequency, but how can
general purpose amplifier work with GHz range frequency? The output of first amplifier then is fed trough high pass filter
to comparator.
Can anybody explain this?
I can't seem to understand how it can detect (measure) level of RF signal.
I guess, C1 with traces to chip forms antenna matched for desired radar frequency, but how can
general purpose amplifier work with GHz range frequency? The output of first amplifier then is fed trough high pass filter
to comparator.
Can anybody explain this?