Development of a Wide-band HE11 Mode Window for a W-band Gyro-TWA

Donaldson, C. R., McElhinney, P. , Zhang, L. and He, W. (2015) Development of a Wide-band HE11 Mode Window for a W-band Gyro-TWA. In: 2015 IEEE International Vacuum Electronics Conference (IVEC), Beijing, China, 27-29 Apr 2015, ISBN 9781479971107 (doi: 10.1109/IVEC.2015.7223781)

Abstract

Microwave windows are a critical component in gyrotron-traveling wave amplifiers (gyro-TWAs). They are used to couple in or out microwave power whilst maintaining the vacuum inside the beamtube. Broadband windows are very difficult to manufacture, especially for microwave amplifiers which require a very low reflection. Presented in this paper is the design, simulation and measurement of a wide-band (90 to 100 GHz) multilayer microwave window using the HE11 mode as the input microwave mode. The simulated performance shows a better than -30 dB reflection over a 10% bandwidth of 90-100 GHz. The measured window is in very good agreement with the simulated results.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: McElhinney, Dr Paul
• Authors: Donaldson, C. R., McElhinney, P., Zhang, L., and He, W.
• College/School: College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
• ISBN: 9781479971107