X波段高功率宽带选模定向耦合器

喻寄航; 宫玉彬; 王战亮; 余川; 廖勇

doi:10.11884/HPLPB201830.170343

X波段高功率宽带选模定向耦合器

doi: 10.11884/HPLPB201830.170343

喻寄航^{1, 2,},
宫玉彬¹,
王战亮¹,
余川²,
廖勇²

1.
电子科技大学物理电子学院, 成都 610054
2.
中国工程物理研究院应用电子学研究所, 四川绵阳 621900

基金项目:

国家自然科学基金项目 11505043

详细信息

作者简介:
喻寄航(1993－), 男，硕士，从事高功率微波技术研究；yujihang@hotmail.com

中图分类号: TN321.5
计量
- 文章访问数: 1145
- HTML全文浏览量: 292
- PDF下载量: 211
- 被引次数: 0
出版历程
- 收稿日期: 2017-08-31
- 修回日期: 2017-09-27
- 刊出日期: 2018-02-15

X-band high power broadband mode-selective directional coupler

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

摘要

摘要: 过模圆波导在提高功率容量的同时，不可避免地会造成微波源中同时存在多种模式。为了监测X波段长脉冲高功率微波源TM₀₁模的输出功率和频谱，采用CST软件仿真设计了X波段高功率宽带选模定向耦合器，在耦合TM₀₁模的同时可实现对TM₀₂和TE₁₁模的抑制。波导腔体及耦合孔的尺寸以小孔耦合理论和相位叠加原理为基础并结合切比雪夫分布函数计算确定。仿真结果表明：该高功率宽带选模定向耦合器在9.0~9.8 GHz的带宽范围内，耦合度为(-59.08±1) dB，定向性大于30 dB，对TE₁₁模的抑制度大于15 dB，对TM₀₂模的抑制度大于30 dB，功率容量大于2.5 GW。
- 高功率 /
- TM01模 /
- 宽带 /
- 耦合器 /
- 抑制度
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

HTML全文

图 1 X波段高功率宽带TM₀₁模定向耦合器结构示意图

Figure 1. Schematic diagram of coupler

下载: 全尺寸图片幻灯片

图 2 双孔耦合器TM₀₁模隔离度随频率变化曲线

Figure 2. S_{4(1), 1(2)} of TM₀₁ mode vs frequency in two-hole coupler

下载: 全尺寸图片幻灯片

图 3 单组耦合器的仿真结果

Figure 3. Simulation result in coupler with one group of holes

下载: 全尺寸图片幻灯片

图 4 双组耦合器TE₁₁模的隔离度随频率变化曲线

Figure 4. S_{3(1), 1(1)} of TE₁₁ mode vs frequency in coupler with two group of holes

下载: 全尺寸图片幻灯片

图 5 双组耦合器的仿真结果

Figure 5. Simulation result in coupler with two group of holes

下载: 全尺寸图片幻灯片

图 6 9.4 GHz时耦合器内的场强分布

Figure 6. E-field distribution in coupler at 9.4 GHz

下载: 全尺寸图片幻灯片

参考文献(11)

[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.