Wide-Band Homodyne Method of Measuring Microwave Circuits

Two-arm homodyne systems which enable simultaneous and precision measurement of real and imaginary parts of parameters are investigated. The usual manual and time consuming calibration of the system, necessary for each measuring frequency is troublesome. The difficulty has been avoided by introducing a special scaling process, and then calculator correcting the systematic measurement errors within a high-frequency band. Theoretical basis of the method and the original scaling process have been presented. The results of preliminary studies, which allow the measurement error estimated at below 1 percent, have been presented.