High dynamic range octave-band microwave frequency measurement systems up to 18 GHz

The results of developmental work on wide-band systems for microwave frequency measurement are presented in this paper. Based on the interferometric frequency measurement method the systems for octave-band frequency measurement from 1 GHz to 8 GHz have been examined. Thanks to applying limiting amplifiers the systems are characterized by a very high dynamic range either for CW or a very short pulses. All these systems can operate in the -40/spl deg/C-65/spl deg/C temperature range.