A 45-GHz Rotary-Wave
2011
A millimeter-wave rotary-wave oscillator (RWO) is presented that hybridizes standing- and traveling-wave behavior. ThispaperpresentsananalysisofthephasenoiseofthisRWO.The multiphase voltage-controlled RWO is implemented in a 0.12- m SiGe BiCMOS process using only nMOS devices for the oscillator core. The measured frequency of operation is 45 GHz with 6.5% tuning range and has a phase noise of 91 dBc/Hz at 1 MHz and 112 dBc/Hz at 10 MHz. The power consumption of the oscillator core is 13.8 mW from a supply voltage of 1.2 V. IndexTerms—Rotary-waveoscillator (RWO), standing-waveos- cillator (SWO), voltage-controlled oscillators (VCOs).
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