Output circuit of TM<sub>310</sub> mode in double-coupled coaxial cavity resonator loaded with empty waveguide

Dong Yuhe; Tao Xin; Liu Yongxia; Xie Xingjuan

doi:10.3788/HPLPB20122409.2174

Volume 24 Issue 09

Aug. 2012

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(09): 2174-2178

Dong Yuhe, Tao Xin, Liu Yongxia, et al. Output circuit of TM310 mode in double-coupled coaxial cavity resonator loaded with empty waveguide[J]. High Power Laser and Particle Beams, 2012, 24: 2174-2178. doi: 10.3788/HPLPB20122409.2174

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Dong Yuhe, Tao Xin, Liu Yongxia, et al. Output circuit of TM₃₁₀ mode in double-coupled coaxial cavity resonator loaded with empty waveguide[J]. High Power Laser and Particle Beams, 2012, 24: 2174-2178. doi: 10.3788/HPLPB20122409.2174

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Output circuit of TM₃₁₀ mode in double-coupled coaxial cavity resonator loaded with empty waveguide

doi: 10.3788/HPLPB20122409.2174

1.
School of Science,Inner Mongolian University of Science and Technology,Baotou 014010,China;
2.
School of Information Engineering,Inner Mongolian University of Science and Technology,Baotou 014010,China;
3.
Institute of Electronics,Chinese Academy of Sciences,Beijing 100190,China

Received Date: 2012-04-10
Rev Recd Date: 2012-06-20
Publish Date: 2012-08-24

Abstract

Abstract

The output circuit of high-order TM310 mode in single- and double-gap cylindrical coaxial cavities of klystron is designed. The gap impedances at the drift tube centers and corresponding output bandwidths are calculated, simulated and compared according to the equivalent circuit theory when the cavities are loaded with TE10 mode in empty rectangular waveguide. It is found that, double gap cavities have larger gap impedances and bandwidths than those of single gap cavities. By means of setting copper short circuit line in the inner side of output holes, the external quality factor is reduced and the mode uniformity in cavities is increased. This output circuit is suitable for high frequency, high power and narrowband klystrons. The research results are significant to output circuit design of high-order TM mode coaxial cavities of klystrons.
- double-gap coaxial cavity,
- high-order tm mode,
- coupling slot,
- equivalent gap impedance

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