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

作者：Zhang Liang^*; Donaldson Craig R; Cain Peter; Cross Adrian W; He Wenlong

来源：IEEE Electron Device Letters, 2018, 39(7): 1077-1080.

DOI：10.1109/LED.2018.2836868

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

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 similar to 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.

• 出版日期2018-7