A W-band Third Harmonic Gyrotron with an Iris Cavity

被引：10

作者：

Sun, Dimin ^{[1
]}

Chen, Huaibi

Ma, Guowu ^{[2
]}

Lei, Wenqiang ^{[2
]}

Chen, Hongbin

Meng, Fanbao ^{[2
]}

机构：

[1] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

[2] China Acad Engn Phys, Inst Appl Elect, Mianyang 621900, Peoples R China

来源：

JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES | 2014年 / 35卷 / 05期

关键词：

Gyrotron; Harmonic; Iris cavity; Millimeter wave; W-band; SUBMILLIMETER-WAVE GYROTRON; HIGH-POWER GYROTRONS; SUBTERAHERTZ; OPERATION; DESIGN;

D O I：

10.1007/s10762-014-0064-1

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The design and experimental results of a W-band gyrotron operating at the third cyclotron harmonic are presented. The gyrotron is designed to operate at the TE61 mode, which is significantly distinct from competing modes. An iris cavity is employed for the purpose of trapping the third harmonic mode more effectively and lowering its start current. In the experiment, the gyrotron is drived by a triode magnetron injection gun (MIG) which can produce a 45 kV, 3 A electron beam. When maximum axial magnetic field is 1.22 T, a single mode third harmonic gyrotron radiation is observed with the frequency of 94.86 GHz. The maximum output power is 5.5 kW, corresponding to an efficiency of 4%. Another third harmonic mode TE02 is also detected at 88.8 GHz, with maximum output power of 1.5 kW.

引用

页码：458 / 467

页数：10

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