High spectral purity oscillator at 40 GHz: Design using air-dielectric cavity

Author

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

Author_Institution

Nat. Inst. of Stand. & Technol., Boulder, CO, USA

fYear

2010

Firstpage

437

Lastpage

439

Abstract

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 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 by use of interferometric signal processing, (4) large operating signal power of approximately 1 Watt (W), and (5) relatively small size.

Keywords

Q-factor; cavity resonators; dielectric resonator oscillators; interferometry; millimetre wave oscillators; phase modulation; phase noise; air-dielectric cavity resonator; dielectric resonator oscillator; frequency 10 GHz; frequency 40 GHz; high coupling coefficient; high spectral purity oscillator; interferometric signal processing; large carrier suppression; low-phase modulated noise; unloaded cavity quality factor; Cavity resonators; Couplings; Mixers; Noise; Oscillators; Resonant frequency; Sensitivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium (FCS), 2010 IEEE International

Conference_Location

Newport Beach, CA

ISSN

1075-6787

Print_ISBN

978-1-4244-6399-2

Type

conf

DOI

10.1109/FREQ.2010.5556293

Filename

5556293