1 October 1991 24 GHz FET oscillator with slot antenna for quasi-optical transmitter
Author Affiliations +
Proceedings Volume 1576, 16th International Conference on Infrared and Millimeter Waves; 15763X (1991) https://doi.org/10.1117/12.2297854
Event: 16th International Conference on Infrared and Millimeter Waves, 1991, Lausanne, Switzerland
Abstract
Microwave quasi-optical integrated circuits has a potential for low cost manufacturing, simple design, small size and high efficiency. Several works for the quasi-optical components were reported[1]. Due to its planar configuration, monolithic technology can also be applied. In order to meet these requirements, in particular simple design and small size, we proposed a layered structure with a slot formed in the ground plane of the microstrip circuit[2][3]. The slot is electromagnetically coupled through a microstrip to slotline transition to realize the layered structure. Thus, an antenna and a circuit are fabricated on both sides of a dielectric substrate.

This paper describes the design and the experimental results of the 24 GHz negative resistance oscillator circuit for layered quasi-optical transmitter components. The technology for the 10 GHz negative resistance oscillator was scaled for use at a higher frequency with a HEMT (HJFET) as the oscillator source and a 1-λ, slot antenna as the radiator. The design concept for layered quasi-optical transmitter compoments was confirmed by fabrication and measurement at 24 GHz.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shigeo Kawasaki, "24 GHz FET oscillator with slot antenna for quasi-optical transmitter", Proc. SPIE 1576, 16th International Conference on Infrared and Millimeter Waves, 15763X (1 October 1991); doi: 10.1117/12.2297854; https://doi.org/10.1117/12.2297854
PROCEEDINGS
2 PAGES


SHARE
Back to Top