红外与毫米波学报, 2014, 33 (6): 660, 网络出版: 2014-12-26  

高阶圆波导模式圆极化器的研究

Circular polarizers for high-order waveguide modes
作者单位
电子科技大学 物理电子学院, 四川 成都 610054
摘要
提出了一种基于光滑圆波导结构的高阶TEmn模圆极化器.运用耦合波理论和数值计算方法对93GHz TE5,1模圆极化器进行了研究和设计.设计的圆极化器由过渡段和移相段组成, 结构简单, 易于实现.在88~98GHz的频带内, 最大轴比低于1.18.空间辐射测试结果证明了这种高阶圆极化器的性能.为高性能的低阶波导模式圆极化器的设计提供重要参考.
Abstract
Based on the smooth cylindrical waveguide structure, an novel polarization converter for high-order TEmn mode is presented. Using the general coupled wave theory and numerical optimization method, a polarization converter for 94GHz TE5,1 mode is studied. The proposed polarizer, consisting of transition section and phase shift section, features structurally simple and easy construction. From 88GHz to 98GHz, the maximum axial ratio of the polarizer is less than 1.18. The performance of polarizer was veritfied by comparing the ideal radiation field and the measured one. The research work provides a physics model for designing low-order waveguide mode polarizer with high conversion effciency.
参考文献

[1] Thumm M, Kasparek W. Passive high-power microwave components[J]. IEEE Transactions on Plasma Science, 2002, 30(3): 755-786.

[2] Thumm M. Recent developments on high-power gyrotrons—introduction to this special issue[J]. Journal of Infrared, Millimeter, and Terahertz Wave, 2011, 32(3): 241-252.

[3] Kumar N, Singh U, Singh T P, et al. A review on the applications of high power, high frequency microwave source: gyrotron[J]. Journal of Fusion Energy, 2011, 30(4): 257-276.

[4] Aleksandrov N L, Chirkov A V, Denisov G G, et al. Selective excitation of high-order modes in circular wave guide[J]. International Journal of Infrared and Millimeter Waves,1992, 13(09): 1369-1385.

[5] Pereyaslavets M, Braz O, Kern S, et al. Improvements of mode converters for low-power excitation of gyrotron-type modes[J]. International Journal of Electronics, 1997, 82(01): 107-115.

[6] LI Shao-Fu, ZHANG Cong-Hui, WANG Zhong, et al. Quasi-optical millimeter wave rotating TE62 mode generator[J]. High Power Laser and Particle Beams(李少甫, 张从会, 王忠, 等.准光激励毫米波圆波导旋转TE62模式产生器.强激光与粒子束)2011, 23(8): 2174-2178.

[7] Bogdashov A A, Chirkov A V, Denisov G G. High-efficient mode converter for ITER gyrotron[J]. International Journal of Infrared and Millimeter Waves. 2005, 26(06): 771-785.

[8] Chang T H, Lee C H, Wu C N, et al. Exciting circular TEmn modes at low terahertz region[J]. Appl. Phys. Lett, 2008, 93(11): 111503.

[9] Chang T H, Li C H, Wu C N, et al. Generating pure circular TEmn modes using Y-type power dividers[J]. IEEE Trans. Microw. Theory Tech., 2010, 58(6): 1543-1550.

[10] WANG Zhi-Jian. Study of millimeter wave quasioptical mode converter and its measurements technology[D]. Chengdou: University of Electronic Science and Technology of China(王志坚.毫米波准光模式变换器及测设技术的研究.成都: 电子科技大学)2010.

[11] XIE Chong-Fang, RAO Ke-Jin. Electromagnetic field and electromagnetic waves (the fourth edition)[M]. Higher Education Press(谢处方, 饶克谨.电磁场与电磁波(第4版).高等教育出版社)2005.

[12] WANG E-Feng, LI Hong-Feng, LI Hao, et al. Study of the helical waveguide[J]. Atca Physica Sinica(王峨锋, 李宏福, 李浩, 等.螺旋波纹波导研究.物理学报)2005, 54(11): 5339-5343.

[13] NIU Xin-Jian. Study of high power microwave transmission line and mode conversion[D]. Chengdou: University of Electronic Science and Technology of China(牛新建.高功率微波传输线及模式变换研究.成都: 电子科技大学)2010.

[14] Doane J L. Polarization converters for circular waveguide mode[J]. Int. J. Electronics, 1986, 61(6): 1109-1133.

[15] Thumm M, Kumric H. High-power TE11 and TM11 circular polarizer in oversized waveguide at 70GHz[J]. International Journal of Infrared and Millimeter, 1989, 10(9): 1059-1076.

[16] CST Microwave Studio: Computer Simulation Technology AG [Online] Available: http: ∥www.cst.com.

[17] ZHAO Chun-Hui, YANG Shen-Yuan. The optimization design of ultra-wide band line polarization device[J]. Journal on communications(赵春晖, 杨莘元.超宽带折线圆极化器的优化设计.通信学报), 1996, 17(1): 97-110.

吴泽威, 李浩, 付华, 徐建华, 李家胤. 高阶圆波导模式圆极化器的研究[J]. 红外与毫米波学报, 2014, 33(6): 660. WU Ze-Wei, LI Hao, FU Hua, XU Jian-Hua, LI Jia-Yin. Circular polarizers for high-order waveguide modes[J]. Journal of Infrared and Millimeter Waves, 2014, 33(6): 660.

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