I am trying to monitor an incoming signal and get some properties from it. The signal is a sine wave +-5V at 900Mhz. I am trying to measure the amplitude and the frequency of the signal. I will probably also have to buffer the input but that shouldn't be to much trouble.
I have been able to use schottky rectification for a couple of Mhz but eventually the diode cant recover fast enough. If anyone has any suggestion of small signal diodes that might be able to keep up with this that would be great. I have also looked at some switchable pre-scalers but unfortunately I loose the ability to feed my RC network.
As far as measuring the amplitude goes I am feeding the rectified circuit into an RC network.