Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

High Spectral purity oscillator at 40 GHz: Design using air-dielectric Cavity



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


We describe the design of a low-PM noise 40 GHz oscillator that uses a conventional air-dielectric cavity resonator as a frequency discriminator to clean up the PM noise of a commercial 10 GHz dielectric resonator oscillator (DRO) 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 using interferometric signal processing, (4) large operating signal power, approximately 1 Watt (W), and (5) relatively small size.
Proceedings Title
Proc. 2010 IEEE Intl. Freq. Cont. Symp.
Conference Dates
June 1-4, 2010
Conference Location
Newport Beach, CO


air-dielectric resonator, multiplier, oscillator, phase modulated noise


Hati, A. , Nelson, C. , Riddle, B. and Howe, D. (2010), High Spectral purity oscillator at 40 GHz: Design using air-dielectric Cavity, Proc. 2010 IEEE Intl. Freq. Cont. Symp., Newport Beach, CO, [online], (Accessed June 19, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created June 2, 2010, Updated February 19, 2017