The load of the signal output and the following amplification of the mixer output signal is
usually done by operational amplifier stages, which are providing both – amplification and
bandwidth limitation.
Depending on the application the total required amount of external amplification can be
somewhat around 70 to 80 dB, in order to get the mixer output signal into an amplitude range
of 1V.
Generally the bandwidth of the receiver mixer of the IPM-165 is pretty high – at least 100
MHz. However in order to build a highly sensitive detector for a certain application it is heavily
recommended to limit the bandwidth of the amplified frequency band and therefore avoid
injection of unwanted noise