VCO FQR millimeter-wave phase-locked sources

A high quality mm-wave source is absolutely necessary in various mm-nave engineering systems. It determines, to we extent, the upper performance limit of the system. It CM be said that a phase-locked source ( PIS ) is the only choice which possesses both very high long-term stability and good near-end and far-end phase noise characteristics. So a PLS is the key device in many mm-wave systems.