The experimental results of a thermionic cusp electron gun, to drive millimeter and
submillimeter wave harmonic gyrodevices, are reported in this paper. Using a “smooth” …

Microwave occupies a glorious position in the electromagnetic spectrum and in that there
are a number of devices in this frequency regime which are capable of high power …

A quasi-optical mode converter in the form of a corrugated horn has been designed through
numerical simulations, manufactured and experimentally measured for application in W …

A triode-type cusp electron gun was optimized through numerical simulations for a W-band
gyrotron traveling wave amplifier. An additional electrode in front of the cathode could switch …

High efficiency and broadband operation of a gyrotron traveling wave amplifier (gyro-TWA)
require a high-quality electron beam with low-velocity spreads. The beam velocity spreads …

A∼ 390 GHz harmonic gyrotron based on a cusp electron gun has been designed and
numerically modelled. The gyrotron operates at the seventh harmonic of the electron …

The gyrotron traveling-wave tube (gyro-TWT) is a wideband version of gyrotron amplifiers,
which produce pulsed or continuous-wave radiation in the millimeter-wavelength band at a …

A magnetic cusp gun (MCG) is being developed to generate an axis-encircling electron
beam, which is called the large orbit beam, which is going to drive a 0.396-THz fourth …

Gyro-amplifiers using helically corrugated waveguides have shown exceptional gain, power,
bandwidth, and efficiency performance at cm and mm wavelengths. The performance of a …

A magnetic cusp gun with a control grid was optimized through parametric simulations for a
gyrotron traveling-wave amplifier with an output power of 10 kW and a central operating …