Share Email Print

Proceedings Paper

Circulator Using Gaas Dual Gate FETs
Author(s): Sachihiro Toyoda
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

This paper describes active circulators for microwave band. Using three dual-gate FETs, a 2 GHz band circulator was constructed. The bandwidth of this circulator is 1.3 GHz, and the insertion loss and the isolation are 0.3 dB and 30 dB, respectively. Further, the circulator for 5 - 18 GHz band is proposed and tested. Three amplifiers for 5 - 18 GHz and three power dividers' are used. The frequency range of this circulator is from 5 to 18 GHz. The circulator exhibit the insertion loss of 0.3 dB and the isolation of 30 dB. The circulator for 5 - 18 GHz band can be used for the input power up to 19 dBm.

Paper Details

Date Published: 18 November 1989
PDF: 2 pages
Proc. SPIE 1039, 13th Intl Conf on Infrared and Millimeter Waves, (18 November 1989); doi: 10.1117/12.978499
Show Author Affiliations
Sachihiro Toyoda, Osaka Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 1039:
13th Intl Conf on Infrared and Millimeter Waves
Richard J. Temkin, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?