Characterization of spurious-response suppression in double-balanced mixers

An analysis of spurious-response suppression in double-balanced (DB) mixers, using the diode current-voltage characteristic, is presented. A theoretical relationship between different spurious responses and the input power level is shown. This relationship leads to the following conclusions: (1) a direct relationship exists between the spurious-response suppression and the spurious-response order of the RF component; and (2) a linear relationship exists between the spurious-response suppression and RF power. Experimental results are presented, showing close agreement with the above conclusions.<
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