CNC machined helically corrugated interaction region for a THz gyrotron traveling wave amplifier
Donaldson, Craig R. and Zhang, Liang and Beardsley, Mat and Harris, Michael and Hugard, Peter G. and He, Wenlong (2018) CNC machined helically corrugated interaction region for a THz gyrotron traveling wave amplifier. IEEE Transactions on Terahertz Science & Technology, 8 (1). pp. 85-89. ISSN 2156-3446
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Abstract
This paper reports the development of a helically corrugated interaction region (HCIR) for a 100 W gyrotron traveling wave amplifier operating at a central frequency of 0.37 THz. This HCIR has a corrugation amplitude of 42 μm, with a nominal waveguide diameter of 0.760 mm. The HCIR was made by electroforming copper on a sacrificial aluminum mandrel: the latter was precision CNC milled using a 0.2 mm diameter ball nose cutter. The dispersion characteristics of the HCIR were measured and found to be in good agreement with the analytical calculation and numerical simulation. Measured insertion loss was between 2 and 4 dB.
Creators(s): |
Donaldson, Craig R. ![]() ![]() ![]() | Item type: | Article |
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ID code: | 62658 |
Notes: | © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Keywords: | gyro-amplifier, helically corrugated waveguide, dispersion, Electrical engineering. Electronics Nuclear engineering, Electrical and Electronic Engineering |
Subjects: | Technology > Electrical engineering. Electronics Nuclear engineering |
Department: | Faculty of Science > Physics |
Depositing user: | Pure Administrator |
Date deposited: | 19 Dec 2017 13:55 |
Last modified: | 21 Jan 2021 09:45 |
Related URLs: | |
URI: | https://strathprints.strath.ac.uk/id/eprint/62658 |
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