An on-board 47-GHz phose-locked oscillator using FET gate bias control for low phase noise

We have developed an on-board 47-GHz phase locked oscillator (PLO) for millimeter-wave personal satellite communications system. For low phase-noise operation, we developed an osciplier using PET gate bias control technique, and used a sampling phase detector. We developed a noise addition model for accurate design. The phase noise of this 47-GHz PLO was an exceptionally low -63, -85, and -100 dBc/Hz at offset frequencies of 100 Hz, 1 kHz, and 100 kHz.