Lossless frequency dependence Dicke switch type radiometer

摘要

Dicke switched radiometer includes a signal channel comprising a first amplifier stage circuit that generates an input signal amplified amplifies the output of the antenna and antenna for receiving an input signal, a resistive load, the output of the resistive load the second amplification stage circuit for generating a reference signal amplified amplifies, and, coupled to the output of the second amplifier stage circuit, to match the frequency and the impedance of the reference signal obtained by amplifying the frequency and the impedance of the amplified input signal a reference channel consisting of matched filters, coupled to the first amplifier stage circuit and the matched filter, the input signal amplified to generate a difference signal inputs the output of the input signal and a matched filter was amplified and the output of the matched filter and Dicke switch for switching between, coupled to the output of the Dicke switch, and a third amplification stage circuit for amplifying a difference signal, a third in order to generate a difference signal detected acquires the amplified difference signal having a detector coupled to the output of the amplifier stage circuitFIELD 2