Microwave quenchable oscillators-a new class

Author

Khanna, A.P.S. ; Oyafuso, R.T. ; Soohoo, R. ; Huynh, J.

Author_Institution

Avantek Inc., Santa Clara, CA, USA

fYear

1989

fDate

13-15 June 1989

Firstpage

515

Abstract

A novel class of fast-switching oscillators is presented, in which the oscillations are switched on and off without affecting the device bias conditions by quenching the negative resistance with a pin diode. The quenching technique, applicable to all types of oscillators, makes possible the realization of fast-switching, fast-settling, spurious-free wideband multi-oscillator assemblies. The speed of operation is demonstrated by a Ku-band voltage-controlled oscillator which settles within 1 MHz of its final frequency and a Ku-band dielectric resonator oscillator which settles within 100 kHz of its final frequency within 1 mu s after the output is switched on using the pin-diode quenching technique. The same pin-diode control can be used in a ´partial quenching´ mode for control of output power level and for harmonic reduction.<>

Keywords

microwave oscillators; solid-state microwave circuits; variable-frequency oscillators; Ku-band dielectric resonator oscillator; Ku-band voltage-controlled oscillator; PIN diode; bias conditions; fast-switching oscillators; harmonic reduction; microwave quenchable oscillators; negative resistance quenching; output power level; partial quenching mode; wideband multi-oscillator assemblies; Assembly; Feedback circuits; Frequency; Microwave devices; Microwave oscillators; Power generation; RLC circuits; Silicon; Switches; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1989., IEEE MTT-S International

Conference_Location

Long Beach, CA, USA

Type

conf

DOI

10.1109/MWSYM.1989.38779

Filename

38779