Experimental study on a W-band Gyro-BWO with a helically corrugated waveguide

Liang Zhang; Wenlong He; Craig R. Donaldson; Paul McElhinney; Adrian W. Cross; Alan D. R. Phelps; Kevin Ronald

doi:10.1109/PLASMA.2012.6384069

Experimental study on a W-band Gyro-BWO with a helically corrugated waveguide

Liang Zhang, Wenlong He, Craig R. Donaldson, Paul McElhinney, Adrian W. Cross, Alan D. R. Phelps, Kevin Ronald

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

Abstract

Summary form only given. Gyro-BWOs are efficient sources with wide frequency tuneability and high power capability from the microwave to terahertz frequency range. The helically corrugated waveguide couples two modes in the circular waveguide to generate a new operating eigen-mode which has large group velocity in low axial wavenumber range. Gyro-BWOs based on helically corrugated waveguides can achieve even wider frequency tuning range and higher efficiency. A W-band gyro-BWO currently being built at the University of Strathclyde achieves a 3 dB frequency bandwidth of 84-104 GHz, output power of 10 kW with an electronic efficiency of 17% in the simulations. The recent progress on the experimental study of the W-band gyro-BWO is presented in this paper.

Original language	English
Title of host publication	2012 Abstracts IEEE International Conference on Plasma Science
Place of Publication	Piscataway, N.J.
Publisher	IEEE
Number of pages	1
ISBN (Print)	978-1-4577-2127-4
DOIs	https://doi.org/10.1109/PLASMA.2012.6384069
Publication status	Published - 24 Dec 2012

Keywords

backward wave oscillators
plasmas
helium
gyrotrons

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10.1109/PLASMA.2012.6384069

Cite this

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title = "Experimental study on a W-band Gyro-BWO with a helically corrugated waveguide",

abstract = "Summary form only given. Gyro-BWOs are efficient sources with wide frequency tuneability and high power capability from the microwave to terahertz frequency range. The helically corrugated waveguide couples two modes in the circular waveguide to generate a new operating eigen-mode which has large group velocity in low axial wavenumber range. Gyro-BWOs based on helically corrugated waveguides can achieve even wider frequency tuning range and higher efficiency. A W-band gyro-BWO currently being built at the University of Strathclyde achieves a 3 dB frequency bandwidth of 84-104 GHz, output power of 10 kW with an electronic efficiency of 17% in the simulations. The recent progress on the experimental study of the W-band gyro-BWO is presented in this paper.",

keywords = "backward wave oscillators, plasmas, helium, gyrotrons",

author = "Liang Zhang and Wenlong He and Donaldson, {Craig R.} and Paul McElhinney and Cross, {Adrian W.} and Phelps, {Alan D. R.} and Kevin Ronald",

year = "2012",

month = dec,

day = "24",

doi = "10.1109/PLASMA.2012.6384069",

language = "English",

isbn = "978-1-4577-2127-4",

booktitle = "2012 Abstracts IEEE International Conference on Plasma Science",

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TY - GEN

T1 - Experimental study on a W-band Gyro-BWO with a helically corrugated waveguide

AU - Zhang, Liang

AU - He, Wenlong

AU - Donaldson, Craig R.

AU - McElhinney, Paul

AU - Cross, Adrian W.

AU - Phelps, Alan D. R.

AU - Ronald, Kevin

PY - 2012/12/24

Y1 - 2012/12/24

N2 - Summary form only given. Gyro-BWOs are efficient sources with wide frequency tuneability and high power capability from the microwave to terahertz frequency range. The helically corrugated waveguide couples two modes in the circular waveguide to generate a new operating eigen-mode which has large group velocity in low axial wavenumber range. Gyro-BWOs based on helically corrugated waveguides can achieve even wider frequency tuning range and higher efficiency. A W-band gyro-BWO currently being built at the University of Strathclyde achieves a 3 dB frequency bandwidth of 84-104 GHz, output power of 10 kW with an electronic efficiency of 17% in the simulations. The recent progress on the experimental study of the W-band gyro-BWO is presented in this paper.

AB - Summary form only given. Gyro-BWOs are efficient sources with wide frequency tuneability and high power capability from the microwave to terahertz frequency range. The helically corrugated waveguide couples two modes in the circular waveguide to generate a new operating eigen-mode which has large group velocity in low axial wavenumber range. Gyro-BWOs based on helically corrugated waveguides can achieve even wider frequency tuning range and higher efficiency. A W-band gyro-BWO currently being built at the University of Strathclyde achieves a 3 dB frequency bandwidth of 84-104 GHz, output power of 10 kW with an electronic efficiency of 17% in the simulations. The recent progress on the experimental study of the W-band gyro-BWO is presented in this paper.

KW - backward wave oscillators

KW - plasmas

KW - helium

KW - gyrotrons

U2 - 10.1109/PLASMA.2012.6384069

DO - 10.1109/PLASMA.2012.6384069

M3 - Conference contribution book

SN - 978-1-4577-2127-4

BT - 2012 Abstracts IEEE International Conference on Plasma Science

PB - IEEE

CY - Piscataway, N.J.

ER -

Experimental study on a W-band Gyro-BWO with a helically corrugated waveguide

Abstract

Keywords

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