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A W-band quasi-optical horn with smoothly profiled circular inner surface was optimized and measured for a gyrotron traveling wave amplifier. It was designed to achieve low reflection, high fundamental Gaussian mode content and high directivity in the desired frequency range of 90 to 100 GHz. In the measurement, the reflection of the TE11 mode was lower than −37 dB and the directivity was ∼27 dB with...
In this paper, a smoothly profiled horn was designed and manufactured to replace a corrugated output horn for a W-band gyrotron traveling-wave amplifier with improved ultrahigh vacuum compatibility. It was optimized for high vacuum integrity, low reflection, high fundamental Gaussian mode content, low sidelobe levels, and high directivity over the frequency bandwidth of 90–100 GHz. Over this operating...
A spline horn for use in a W-band gyro-TWA was design and manufactured. The horn was designed to have a high Gaussian content over the whole operating frequency band of 90–100 GHz. It also had a low reflection of the TE11 mode and high directivity.
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