Receiver apparatus for electromagnetic waves for monitoring active mixers in the millimeter wavelength range

摘要

The apparatus (100) has a receiver (101) having an antenna (400) for receiving an electromagnetic wave, a local oscillator (300) and a mixer (200) to mix the received wave with the local oscillator signal to provide an intermediate frequency signal. A filter (203) filters the intermediate frequency signal. A signal processor (204) processes the filtered signal and provides an output signal. The receiver also has a monitor (500) to monitor operating parameters of the receiver. Independent claims also cover a method of receiving electromagnetic waves.