Conversion Loss and Noise of Microwave and Millimeterwave Mixers: Part 1--Theory
نویسنده
چکیده
An analysis is presented for the conversion loss and noise of microwave and millimeter-wave mixers. The analysis includes the effects of nonlinear capacitance, arbitrary embedding impedances, nonideality of microwave diodes, and shot, thermal, and scattering noise generated in the diode. Correlation of downconvertd components of the time-varying shot noise is shown to explain the “anomalous” noise observed in millimeter-wave mixers. Part 1 of the paper presents the theoretical basis for predicting mixer performance, while Part 2 compares theoretical and experimental results for mixers operating at 87 and 115 GHz.
منابع مشابه
Conversion Loss and Noise of Microwave and Millimeterwave Mixers: Part 2--Experiment
The theory of noise and conversion loss in millimeterwave mixers, developed in a companion paper, is applied to an 80-120.-GHz mixer. Good agreement is obtained between theoretical and experimental results, and the source of the recently reported “anomalous noise” is explained. Experimental methods are described for measuring the embedding impedance and diode equivalent circuit, needed for the ...
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