Low-phase-noise Gunn diode oscillator design

Low-phase-noise Gunn diode oscillator design

Low-phase-noise Gunn diode oscillators with an operating frequency of 35 GHz and an output power of 100 mW are designed, fabricated, and tested. The phase noise is -132 dBc/Hz to -125 dBc/Hz at 100-kHz offset from the center frequency. This low phase noise is obtained by closely coupling the stabili...

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Veröffentlicht in:IEEE transactions on microwave theory and techniques 1988-04, Vol.36 (4), p.792-794
Hauptverfasser: Strangeway, R.A., Ishii, T.K., Hyde, J.S.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Cavity resonators
Circuit properties
Coaxial components
Couplings
Diodes
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Frequency
Gunn devices
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Oscillators
Phase noise
Power generation
Testing
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Zusammenfassung:Low-phase-noise Gunn diode oscillators with an operating frequency of 35 GHz and an output power of 100 mW are designed, fabricated, and tested. The phase noise is -132 dBc/Hz to -125 dBc/Hz at 100-kHz offset from the center frequency. This low phase noise is obtained by closely coupling the stabilizing transmission cavity resonator and the Gunn-diode-oscillator coaxial line while loosely coupling the transmission cavity to the output waveguide following van der Heyden's approach.< >
ISSN:0018-9480
1557-9670
DOI:10.1109/22.3594