A 2-5 GHz tunable magnetostatic wave oscillator

Author

Aoki, I.

Author_Institution

Yokogawa Electr. Corp., Tokyo, Japan

fYear

1991

fDate

10-14 July 1991

Firstpage

969

Abstract

A prototype 2-5 GHz tunable magnetostatic wave (MSW) delay line oscillator has been developed. The continuous frequency sweep range is between 1.8 GHz and 5.6 GHz. SSB (single sideband) phase noise characteristics at 10 kHz offset frequency are better than -111 dBc/Hz. The oscillation power level has been carefully controlled because a saturation of a MSW delay line degrades the inherent SSB phase noise of the line by 40 dB at 10 kHz offset frequency. The degradation of the inherent SSB phase noise directly affects the output signal. The frequency drift rate changes from 6.8 MHz/K to 2.8 MHz/K for 2-5 GHz almost linearly. The drift was stabilized within +or-20 MHz for the temperature range from 270 K to 340 K by sensing YIG film temperature and adjusting tuning coil current.<>

Keywords

magnetostatic wave devices; microwave oscillators; variable-frequency oscillators; 2 to 5 GHz; 270 to 340 K; SSB phase noise; delay line oscillator; frequency drift rate; oscillation power level; output signal; phase noise characteristics; tunable magnetostatic wave oscillator; tuning coil current; Amplitude modulation; Degradation; Delay lines; Frequency; Magnetostatic waves; Oscillators; Phase noise; Prototypes; Temperature distribution; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1991., IEEE MTT-S International

Conference_Location

Boston, MA, USA

ISSN

0149-645X

Print_ISBN

0-87942-591-1

Type

conf

DOI

10.1109/MWSYM.1991.147171

Filename

147171