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Proceedings Paper

Tunable 200-GHz electron cyclotron maser
Author(s): Stephen N. Spark; Alan D.R. Phelps
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Paper Abstract

This paper demonstrates the frequency versatility of the developed Mk-6 electron cyclotron maser. In a 100-ns pulse, this system produced more than 100 kW power in both the Ka-band (26-40 GHz) and the W-band (75-110 GHz) with the excitation of the TE(01) mode at 35 GHz and the TE(03) mode at 96 GHz. This system was crudely step tunable in the W-band. Due to the grossly overmoded regime in the G-band (140-220 GHz), the maser proved to be quasi-continuously tunable over the entire range. This work culminated in 200 GHz oscillation. Fast digitizers, with single event 750 MHz bandwidth, were used to study the rise and fall times of the mm-wave output pulse. These experiments revealed structure in the pulse and showed that the maser was operating in a burst mode.

Paper Details

Date Published: 1 April 1990
PDF: 5 pages
Proc. SPIE 1226, Intense Microwave and Particle Beams, (1 April 1990); doi: 10.1117/12.18590
Show Author Affiliations
Stephen N. Spark, Univ. of Strathclyde (United Kingdom)
Alan D.R. Phelps, Univ. of Strathclyde (United Kingdom)

Published in SPIE Proceedings Vol. 1226:
Intense Microwave and Particle Beams
Howard E. Brandt, Editor(s)

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