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The necessity of vector characterized is given by comparison of common test methods for mixer. Based on the model proposed by Agilent company, establish a simplified model of the parameter C and investigate the mixing product and jamming signal processing method. Through the analysis of phase for two-port model, pull the conclusion that the phase of test signal has nothing to do with local oscillator signal, that illustrates the feasibility of absolute phase measurement. Finally, the feasibility and validity of the model and analysis are demonstrated by constructing the measurement system.

Research on mixer testing technology based on vector characterized method