A low phase noise 19 GHz-band VCO using two different frequency resonators

  title={A low phase noise 19 GHz-band VCO using two different frequency resonators},
  author={Shujiro Hamano and Kenji Kawakami and Tadashi Takagi},
  journal={IEEE MTT-S International Microwave Symposium Digest, 2003},
  pages={2189-2192 vol.3}
A low phase noise 19 GHz-band VCO is presented in this paper. The VCO has a novel tuning circuit consisting of two resonators which have a different resonant frequency. With these two resonators, the Q factor of the tuning circuit of the VCO is improved, and low phase noise can be achieved. The measurement results of the developed VCO show phase noise from -120 dBc/Hz to -122 dBc/Hz at 1 MHz from the carrier over a 290 MHz tuning bandwidth in the 19 GHz-band. This VCO achieves one of the lowest… CONTINUE READING
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