A high-power 120 Ghz whispering-gallery-mode gyrotron with a built-in quasi-optical mode converter

Y. Mitsunaka

doi:10.1117/12.2301498

1 December 1990 A high-power 120 Ghz whispering-gallery-mode gyrotron with a built-in quasi-optical mode converter

Y. Mitsunaka

Proceedings Volume 1514, 15th International Conference on Infrared and Millimeter Waves; 15142G (1990) https://doi.org/10.1117/12.2301498
Event: 15th International Conference on Infrared and Millimeter Waves, 1990, Orlando, FL, United States

Abstract

A high power gyrotron with a built-in a-cut Vlasov-type mode converter was experimentally studied. The cavity was designed to operate in the TE12,2 mode at 120 GHz. A converted wave of a linearly polarized mode was focused near the output port by using reflectors. The output wave obtained in the test had a circular power profile of 28 mm diameter (FWHM) and had a maximum power of 548 kW with an efficiency of 30.4 Z.

Citation Download Citation

Y. Mitsunaka "A high-power 120 Ghz whispering-gallery-mode gyrotron with a built-in quasi-optical mode converter", Proc. SPIE 1514, 15th International Conference on Infrared and Millimeter Waves, 15142G (1 December 1990); https://doi.org/10.1117/12.2301498

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