Amplification of frequency-swept signals in a W-band gyrotron travelling wave amplifier

Research output: Contribution to journalLetter

Abstract

The frequency agility of a W-band gyrotron travelling wave amplifier (gyro-TWA) was demonstrated by the amplification of a frequency-swept input signal (chirp signal). The gyro-TWA was developed to provide high output power and wide bandwidth by using a helically corrugated interaction region. In the experiment a ~0.5 W signal of linearly swept frequency bandwidth of 1 GHz was amplified and a gain of over 30 dB was measured when driven by a 40 keV, 1.5 A, axis-encircling electron beam.
LanguageEnglish
Pages1-4
Number of pages4
JournalIEEE Electron Device Letters
Publication statusAccepted/In press - 11 May 2018

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Amplification
Frequency agility
Bandwidth
Electron beams
Experiments

Keywords

  • gyrotron travelling-wave amplifier
  • helically corrugated waveguide
  • gyro-devices
  • frequency-swept signal

Cite this

@article{64dfa3d9baed420d91accf357ac28c59,
title = "Amplification of frequency-swept signals in a W-band gyrotron travelling wave amplifier",
abstract = "The frequency agility of a W-band gyrotron travelling wave amplifier (gyro-TWA) was demonstrated by the amplification of a frequency-swept input signal (chirp signal). The gyro-TWA was developed to provide high output power and wide bandwidth by using a helically corrugated interaction region. In the experiment a ~0.5 W signal of linearly swept frequency bandwidth of 1 GHz was amplified and a gain of over 30 dB was measured when driven by a 40 keV, 1.5 A, axis-encircling electron beam.",
keywords = "gyrotron travelling-wave amplifier, helically corrugated waveguide, gyro-devices, frequency-swept signal",
author = "Liang Zhang and Donaldson, {Craig R.} and Peter Cain and Cross, {Adrian W.} and Wenlong He",
note = "{\circledC} 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works.",
year = "2018",
month = "5",
day = "11",
language = "English",
pages = "1--4",
journal = "IEEE Electron Device Letters",
issn = "0741-3106",

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TY - JOUR

T1 - Amplification of frequency-swept signals in a W-band gyrotron travelling wave amplifier

AU - Zhang, Liang

AU - Donaldson, Craig R.

AU - Cain, Peter

AU - Cross, Adrian W.

AU - He, Wenlong

N1 - © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works.

PY - 2018/5/11

Y1 - 2018/5/11

N2 - The frequency agility of a W-band gyrotron travelling wave amplifier (gyro-TWA) was demonstrated by the amplification of a frequency-swept input signal (chirp signal). The gyro-TWA was developed to provide high output power and wide bandwidth by using a helically corrugated interaction region. In the experiment a ~0.5 W signal of linearly swept frequency bandwidth of 1 GHz was amplified and a gain of over 30 dB was measured when driven by a 40 keV, 1.5 A, axis-encircling electron beam.

AB - The frequency agility of a W-band gyrotron travelling wave amplifier (gyro-TWA) was demonstrated by the amplification of a frequency-swept input signal (chirp signal). The gyro-TWA was developed to provide high output power and wide bandwidth by using a helically corrugated interaction region. In the experiment a ~0.5 W signal of linearly swept frequency bandwidth of 1 GHz was amplified and a gain of over 30 dB was measured when driven by a 40 keV, 1.5 A, axis-encircling electron beam.

KW - gyrotron travelling-wave amplifier

KW - helically corrugated waveguide

KW - gyro-devices

KW - frequency-swept signal

M3 - Letter

SP - 1

EP - 4

JO - IEEE Electron Device Letters

T2 - IEEE Electron Device Letters

JF - IEEE Electron Device Letters

SN - 0741-3106

ER -