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Proceedings Paper

Progress of optical control of quasi-optical oscillators using mesfets
Author(s): Shigeo Kawasaki
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Paper Abstract

Recently, quasi-optical circuits have been of growing interest for compact and simple microwave and millimeter-wave circuits[1]. As an active source, an FET is frequently chosen for the purpose of applying MMIC technology. In addition, the FET is found to be a useful device for the optical control of microwave circuits as demonstrated by examples such as the active filter and the HEMT oscillator with laser illumination. This paper describes the experimental results of the optical control of two types of quasi-optical oscillators. The first is a reactive FET illuminated by an optical source. The second circuit consists of a double-function MESFET as an active source and the FET with a variable reactance by illumination. The tuning ranges and the antenna patterns of these two types of circuits are compared.

Paper Details

Date Published: 14 December 1992
PDF: 2 pages
Proc. SPIE 1929, 17th International Conference on Infrared and Millimeter Waves, 19294W (14 December 1992); doi: 10.1117/12.2298293
Show Author Affiliations
Shigeo Kawasaki, UCLA (United States)


Published in SPIE Proceedings Vol. 1929:
17th International Conference on Infrared and Millimeter Waves
Richard J. Temkin, Editor(s)

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