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Amplification of Frequency-Swept Signals in a $W$ -Band Gyrotron Travelling Wave Amplifier

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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… Click to show full 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, and axis-encircling electron beam.

Keywords: wave amplifier; frequency; band gyrotron; travelling wave; gyrotron travelling; amplification frequency

Journal Title: IEEE Electron Device Letters
Year Published: 2018

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