Electrical analysis of wideband and distributed windows using time-dependent field codes

C. C. Shang

doi:10.1117/12.2298523

30 August 1993 Electrical analysis of wideband and distributed windows using time-dependent field codes

C. C. Shang

Author Affiliations +

Proceedings Volume 2104, 18th International Conference on Infrared and Millimeter Waves; 21042J (1993) https://doi.org/10.1117/12.2298523
Event: 18th International Conference on Infrared and Millimeter Waves, 1993, Colchester, United Kingdom

Abstract

Windows, which provide the barrier to maintain the vacuum envelope in a microwave tube, are criticalcomponents in high-average-power microwave sources, especially at millimeter wavelengths. As RF powerlevels approach the 100's of kWs to 1 MW range (CW), the window assembly experiences severe thermal andmechanical stresses. Depending on the source, the bandwidth of the window may be less than 1 GHz forgyrotron oscillators or up to Ã¢â‚¬â€20 GHz for the FOM Institute's fast-tunable, free-electron-maser [1]. Thebandwidth requirements give rise to a number of window configurations where the common goal is locallydistributed heat dissipation. In order to better understand the transmission and RF properties of these microwavestructures, we use detailed time-dependent field solvers.

Citation Download Citation

C. C. Shang "Electrical analysis of wideband and distributed windows using time-dependent field codes", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21042J (30 August 1993); https://doi.org/10.1117/12.2298523

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