Kudszus, S.S.KudszusHaydl, W.H.W.H.HaydlNeumann, M.M.NeumannHülsmann, A.A.Hülsmann2022-03-092022-03-091999https://publica.fraunhofer.de/handle/publica/33315110.1109/EUMA.1999.338307A coplanar subbarmonic injection locked W-band HEMT VCO with an integrated varactor diode and buffer amplifier was developed, achieving a tuning range of 10 GHz and an output power of 8 dBm at 94 GHz. The oscillator was stabilized by subbarmonic injection locking to reducephase noise and simultaneously by an external phase-locked-loop (PLL) circuit to compensate for temperature drift. The locking range of the system was extended to 1 GHz by the use of the PLL circuit.enHEMTinjection lockingMMICoscillatorOszillatorphase noisePhasenrauschenSynchronisationVCO621667conference paper