RF MMIC Phase Shifter Switching Time Measurements

The methodological assessment problems of the phase states installation rate in the framework of multi-bit phase shifters integrated circuits are identified. Various phase measuring methods for radio-frequency integrated circuits transceiver modules of active phased array antenna are represented. The possibility of measuring pulses with short duration is shown. The methods allow analyzing phase switching time of the lower discrete phase shifter bit states taking into account transients. A comparison of two measurement methods were made. Phase setting time values was obtained during the experiment (about 30 ns for M2).