High-power broadband amplifiers based on the gyro-TWT
- 1 Corresponding Member of RAS, Head of Department, Institute of Applied Physics (Nizhni Novgorod); Professor, Nizhegorodskii State University n.a. N.I. Lobachevskii
- 2,3,4 Ph.D. (Phys.-Math.), Senior Research Scientist, Institute of Applied Physics (Nizhni Novgorod)
- 5 Dr.Sc. (Phys.-Math.), Senior Research Scientist, Institute of Applied Physics (Nizhni Novgorod)
- 6 Ph.D. (Phys.-Math.), Senior Research Scientist, Institute of Applied Physics (Nizhni Novgorod); Director, JSC «Gikom»
- 7 Ph.D. (Phys.-Math.), Head of Department, JSC «Gikom»
- 8 Ph.D. (Phys.-Math.), Director, Nizhegorodskii Department of JSC «Gikom»
Abstract
The results of experimental investigation of two Ka-band gyrotron traveling-wave tubes (gyro-TWTs) with helically corrugated waveguides are presented. The first tube produces pulsed output power of 130-160 kW within the frequency range of 33.1-35.5 GHz and is capable of operating with a 10% duty factor. Reliability of its major components in the high average power operation regime (about 10 kW) was proven in a continuous-wave (CW) experiment. The second gyro-TWT amplifier delivered CW power of up to 7.7 kW with −3-dB bandwidth of 2.6 GHz and −1-dB bandwidth of 2.1 GHz. Effective implementation of single-stage depressed collectors (for the first time for gyro-TWTs) enabled the electron efficiencies as high as 36% for the pulsed tube and 33% for the CW tube to be achieved at operation at the second cyclotron harmonic.
How to cite
Денисов Г.Г., Богдашов А.А., Гачев И.Г., Мишакин С.В., Самсонов С.В., Соколов Е.В., Солуянова Е.А., Тай Е.М. Мощные широкополосные усилители на основе гиро-ЛБВ // Электромагнитные волны и электронные системы. 2015. № 5. С. 28–33.
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