X-band high power broadband mode-selective directional coupler

Yu Jihang; Gong Yubin; Wang Zhanliang; Yu Chuan; Liao Yong

doi:10.11884/HPLPB201830.170343

Volume 30 Issue 2

Feb. 2018

Turn off MathJax

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2018 > 30(2): 023003

Yu Jihang, Gong Yubin, Wang Zhanliang, et al. X-band high power broadband mode-selective directional coupler[J]. High Power Laser and Particle Beams, 2018, 30: 023003. doi: 10.11884/HPLPB201830.170343

Citation:

Yu Jihang, Gong Yubin, Wang Zhanliang, et al. X-band high power broadband mode-selective directional coupler[J]. High Power Laser and Particle Beams, 2018, 30: 023003. doi: 10.11884/HPLPB201830.170343

Citation:

PDF( 2613 KB)

X-band high power broadband mode-selective directional coupler

doi: 10.11884/HPLPB201830.170343

1.
School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
2.
Institute of Applied Electronics, CAEP, P.O.Box 919-1015, Mianyang 621900, China

Received Date: 2017-08-31
Rev Recd Date: 2017-09-27
Publish Date: 2018-02-15

Abstract

Abstract

The overmoded circular waveguide can achieved high power capacity, which will inevitably lead to high order mode. In order to monitor the output power and frequency spectrum of the X-band long pulse high power microwave source, an X-band high power microwave broadband mode selection directional coupler was designed by the simulation of CST software, which is used to couple TM₀₁ mode and suppress the TM₀₂ and TE₁₁ mode. The sizes of waveguide and coupling hole were decided by the small coupling theory and phase superposition principle. At the central frequency range of 9.0-9.8 GHz, the simulation results show that the coupling degree of the coupler is about (-59.08±1) dB, the directivity of TM₀₁ mode is more than 30 dB, the suppression of TE₁₁ mode is more than 15 dB, and the suppression of TM₀₂ mode is more than 30 dB, the power handling capacity is 2.5 GW.
- high power,
- TM01 mode,
- broadband,
- coupler,
- suppression

FullText(HTML)

References(11)

References

[1]	刘国, 罗勇, 王建勋, 等. 高功率圆波导多孔阵列定向耦合器设计[J]. 强激光与粒子束, 2012, 24(2): 417-422. doi: 10.3788/HPLPB20122402.0417 Liu Guo, Luo Yong, Wang Jianxun, et al. Design of high power circular multi-aperture array directional coupler. High Power Laser and Particle Beams, 2012, 24(2): 417-422 doi: 10.3788/HPLPB20122402.0417
[2]	Zhang Jun, Jin Zhenxing, Zhong Huihuang, et al. Recent advance in long-pulse HPM sources with repetive operation in S-, C-, and X-bands[J]. IEEE Trans Plasma Sci, 2011, 39(6): 1438-1445.
[3]	唐涛, 巩华荣, 王文祥. 过模波导定向耦合器设计的探讨[J]. 真空电子技术, 2014, 6(5): 5-8. https://www.cnki.com.cn/Article/CJFDTOTAL-ZKDJ201406002.htm Tang Tao, Gong Huarong, Wang Wenxiang. The consideration of the directional coupler with overmoded waveguide. Vacuum Electronics, 2014, 6(5): 5-8 https://www.cnki.com.cn/Article/CJFDTOTAL-ZKDJ201406002.htm
[4]	白珍. 过模O型Cerenkov高功率微波源输出模式诊断方法研究[D]. 长沙: 国防科技大学, 2012. Bai Zhen. Research on the diagnosis methods of the output modes generated by overmoded O-type Cerenkov high power microwave source. Changsha: National University of Defense Technology, 2012
[5]	白珍, 李国林, 张军. X波段高功率微波选模定向耦合器[J]. 强激光与粒子束, 2013, 25(7): 1747-1750. doi: 10.3788/HPLPB20132507.1747 Bai Zhen, Li Guolin, Zhang Jun. X-band high power microwave mode-selective direction coupler. High Power Laser and Particle Beams, 2013, 25(7): 1747-1750 doi: 10.3788/HPLPB20132507.1747
[6]	张立刚, 宋志敏, 李小泽, 等. X波段宽度圆波导耦合器设计[J]. 现代应用物理, 2015, 6(2): 98-101. Zhang Ligang, Song Zhimin, Li Xiaoze, et al. Design of a broad band circular coupler at X-band. Modern Applied Physics, 2015, 6(2): 98-101
[7]	Wang Wenxiang, Gong Yubin, Yu Guofen, et al. Mode discriminator based on mode-selective coupling[J]. IEEE Trans Microwave Theory and Techniques, 2003, 51(1): 55-63.
[8]	谢处方, 饶克谨. 电磁场与电磁波[M]. 北京: 高等教育出版社, 2006. Xie Chufang, Rao Kejin. Electromagnetic field and electromagnetic wave. Beijing: Higher Education Press, 2006
[9]	曹乃胜, 罗勇, 王建勋. 圆波导-矩形波导小孔耦合定向耦合器设计[J]. 强激光与粒子束, 2008, 20(4): 637-640. http://www.hplpb.com.cn/article/id/3503 Cao Naisheng, Luo Yong, Wang Jianxun. Design of aperture-coupling directional coupler. High Power Laser and Particle Beams, 2008, 20(4): 637-640 http://www.hplpb.com.cn/article/id/3503
[10]	王文祥. 微波工程技术[M]. 北京: 国防工业出版社, 2009. Wang Wenxiang. Microwave engineering technology. Beijing: National Defense Industry Press, 2009
[11]	Barker R J, Schamiloglu E. High-power microwave sources and technologies[M]. New Jersey: IEEE Press, 2001: 36-39.