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A 40 GHz Air-Dielectric Cavity Oscillator with Low Phase Modulation



Archita Hati, Craig W. Nelson, Billy F. Riddle, David A. Howe


We describe the design of a low-phase modulated (PM) noise, 40 GHz oscillator that uses a conventional air-dielectric cavity resonator as a frequency discriminator to improve the PM noise of a commercial 10 GHz dielectric resonator oscillator (DRO) frequency multiplied by four. The main features of this design incorporate (1) unloaded cavity quality factor (Q) of 30,000, (2) high coupling coefficient, (3) large carrier suppression by use of interferometric signal processing, (4) large operating signal power of approximately 1 Watt (W), and (5) relatively small size. In addition, we report the PM noise of several Ka-band components.
Measure: The Journal of Measurement Science


Air-dielectric, Cavity-stabilized, Frequency-discriminator, Oscillator, Phase noise


Hati, A. , Nelson, C. , Riddle, B. and Howe, D. (2014), A 40 GHz Air-Dielectric Cavity Oscillator with Low Phase Modulation, Measure: The Journal of Measurement Science (Accessed April 15, 2024)
Created September 1, 2014, Updated February 19, 2017