Design and Experimental Study of a Ka-band Gyro-TWT With Periodic Dielectric Loaded Circuits

被引：41

作者：

Liu, Bentian ^{[1
]}

Feng, Jinjun ^{[1
]}

Wang, Efeng ^{[1
]}

Li, Zhiliang ^{[1
]}

Zeng, Xu ^{[1
]}

Qian, Lijun ^{[1
]}

Wang, Hui ^{[1
]}

机构：

[1] Beijing Vacuum Elect Res Inst, Vacuum Elect Natl Lab, Beijing 100015, Peoples R China

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2011年 / 39卷 / 08期

关键词：

Broadband; dielectric loaded waveguides; gyrotron traveling-wave tubes (gyro-TWTs); millimeter wave; TRAVELING-WAVE AMPLIFIER;

D O I：

10.1109/TPS.2011.2158009

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The design and experimental study of a Ka-band gyrotron traveling-wave tube (gyro-TWT) amplifier operating in the circular TE01 mode at the fundamental cyclotron harmonic are presented. A periodic dielectric loaded structure is adopted in the interaction circuit of the gyro-TWT to suppress spurious modes TE11 and TE21. A saturated peak power of 156 kW is obtained with a saturated gain of 44 dB, an efficiency of 23.3% in an operating voltage of 67 kV, an electron beam current of 10 A, and a -3-dB bandwidth of 1.8 GHz (similar to 5.2%). The gyro-TWT is found to be zero-drive stable at these operating points and to be characteristic of the excellent purity of the signal frequency spectrum in the operating frequency range.

引用

页码：1665 / 1672

页数：8

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