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| Design and Experiment of a Super-wide Band Output Circuit with Two Channels for Klystron Applications |
| Zhang Zhi-qiang Luo Ji-run Zhang Zhao-chuan |
(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)
(Key Laboratory of High Power Microwave Sources and Technologies, Chinese Academy of Sciences, Beijing 100190, China) |
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Abstract The design ideas and performance process of a super-wide band and two channels output circuit on a klystron are presented. A super-wide band two-channel double-gap coupled-cavity output circuit, whose bandwidth is over 550 MHz, is designed at S band by Ansoft HFSS. A channel switch structure is designed, and the resonance parameters of the two channels are determined. Then, a conclusion is made that channels can be switched easily through tuning the coupled-slot without changing the parameters of the two cavities. The frequencies of each mode in the double-gap coupled-cavity output circuit are simulated through calculating the model by Ansoft HFSS. The frequencies of each mode accord with the “cold test” mainly. The gap impedance of double-gap coupled-cavity, which is simulated by analysis of equivalent lumped element circuit, also accords with the “cold test” very well.
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Received: 19 July 2013
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Corresponding Authors:
Zhang Zhi-qiang
E-mail: zqzhang@mail.ie.ac.cn
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2014, Vol. 36 
