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In the application of low loss beam waveguides and high performance reflector antennas, high power microwave should be converted to quasi-Gaussian HE11 mode, to decrease side lobe level and increase feed coefficient. Based on the fact that TM01 mode converts to TE11 and TM11 mode at the same time in bent overmode circular waveguide, a TM01 to HE11 mode converter was proposed in this paper, which can convert TM01 mode to HE11 mode directly using a bent circular waveguide, the converter has higher power compacity than corrugated TE11-HE11 mode converter and more compact than TE11-TM01 mode converter added with smooth wall TE11-HE11 mode converter. The geometric parameters of the convertor were analyzed and optimized by using coupled mode theory and Taguchi method, to output the target modes content, 80% TE11 and 20% TM11 modes, which are primarily composed of HE11 mode. The optimized converter was analyzed using full electro-magnetic simulation method, the scalar Gauss ratio of the output beam is higher than 99% from 9.05 GHz to 9.8 GHz, the power capacity is as high as 4.5 GW.
[1] Thumm M, Jacobs A, Sorolla A M 1991 IEEE Transactions on Microwave Theory and Techniques 39 301
[2] Wu Y, Jin X, Ma Q S, Li Z H, Ju B Q, Su C, Xu Z, Tang C X 2011 Acta Phy. Sin. 60 084101(in Chinese) [吴洋, 金晓, 马乔生, 李正红, 鞠炳全, 苏昶, 许州, 唐传祥 2011 60 084101]
[3] Ma Q S, Jin X, Xu M, Li Z H, Wu Y 2011 Acta Phys. Sin. 60 105201 (in Chinese) [马乔生, 金晓, 绪明, 李正红, 吴洋 2011 60 105201]
[4] Liu Z B, Jin X, Xu M, Huang H, Chen H B 2012 Acta Phys. Sin. 61 128401 (in Chinese) [刘振帮, 金晓, 黄华, 陈怀璧 2012 61 128401]
[5] Fang J Y, Huang H J, Zhang Z Q, Huang W H, Jiang W H 2011 Acta Phys. Sin. 60 048404 (in Chinese) [方进勇, 黄惠军, 张治强, 黄文华, 江伟华 2011 60 048404]
[6] Zhang Q, Yuan C W, Liu L 2008 20 1173 (in Chinese) [张强, 袁成卫, 刘列 2008 强激光与粒子束 20 1173]
[7] Lan F, Yang Z Q, Shi Z J 2012 Acta Phys. Sin. 61 155201 (in Chinese) [兰峰, 杨梓强, 史宗君 2012 61 155201]
[8] Wang X J, Liu F K, Zhao L M, Jia H, Liu H B, Kuang G L 2009 Chin. Phys. Lett. 26 025202
[9] Zhang Q, Yuan C W, Liu L 2011 Chin. Phys. Lett. 28 068401
[10] Yang S W, Qing A Y 2005 IEEE Trans on Plasma Science 33 1372
[11] Niu X J, Gu L, Yu X H 2011 Acta Electrnica Sinica 39 1947 (in Chinese) [牛新建, 顾玲, 于新华 2011 电子学报 39 1947]
[12] Thumm M, Jacobs A, Ayza S 1999 IEEE Trans on Microwave Theory and Techniques 39 301
[13] Zhang Y W 2004 Master Dissertation (Changsha: National University of Desfense Technology) (in Chinese) [张玉文 2004 硕士学位论文 (长沙: 国防科技大学)]
[14] Wang D, Chen D B, Qin F, Fan Z K 2009 Chin. Phys. B 18 04281
[15] Xu A, Wang W X, Wei Y Y, Gong Y B 2009 Chin. Phys. B 18 00810
[16] Xu G, Yu C, Li Z H, Liao Y, Xie P 2013 High Power Laser and Particle Beams 25 394 (in Chinese) [徐刚, 余川, 李正红, 廖勇, 谢平 2013 强激光与粒子束 25 394]
[17] Yu X H 2010 Ph. D. Dissertation (Chendu: University of Electronic Science and Technology of China) (in Chinese) [于新华 2010 博士学位论文 (成都: 电子科技大学)]
[18] Weng W C, Yang F, Demir V 2006 IEEE Ant and Prop Society International Symposium 2006 p2063
[19] Xu G, Liao Y, Xie P, Meng F B, Tang C X 2011 IEEE Transactions on Plasma Science 39 652
[20] Shapiro M A, Temkin R J 2011 Journal of Infrared Milli Terahz Waves 32 283
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[1] Thumm M, Jacobs A, Sorolla A M 1991 IEEE Transactions on Microwave Theory and Techniques 39 301
[2] Wu Y, Jin X, Ma Q S, Li Z H, Ju B Q, Su C, Xu Z, Tang C X 2011 Acta Phy. Sin. 60 084101(in Chinese) [吴洋, 金晓, 马乔生, 李正红, 鞠炳全, 苏昶, 许州, 唐传祥 2011 60 084101]
[3] Ma Q S, Jin X, Xu M, Li Z H, Wu Y 2011 Acta Phys. Sin. 60 105201 (in Chinese) [马乔生, 金晓, 绪明, 李正红, 吴洋 2011 60 105201]
[4] Liu Z B, Jin X, Xu M, Huang H, Chen H B 2012 Acta Phys. Sin. 61 128401 (in Chinese) [刘振帮, 金晓, 黄华, 陈怀璧 2012 61 128401]
[5] Fang J Y, Huang H J, Zhang Z Q, Huang W H, Jiang W H 2011 Acta Phys. Sin. 60 048404 (in Chinese) [方进勇, 黄惠军, 张治强, 黄文华, 江伟华 2011 60 048404]
[6] Zhang Q, Yuan C W, Liu L 2008 20 1173 (in Chinese) [张强, 袁成卫, 刘列 2008 强激光与粒子束 20 1173]
[7] Lan F, Yang Z Q, Shi Z J 2012 Acta Phys. Sin. 61 155201 (in Chinese) [兰峰, 杨梓强, 史宗君 2012 61 155201]
[8] Wang X J, Liu F K, Zhao L M, Jia H, Liu H B, Kuang G L 2009 Chin. Phys. Lett. 26 025202
[9] Zhang Q, Yuan C W, Liu L 2011 Chin. Phys. Lett. 28 068401
[10] Yang S W, Qing A Y 2005 IEEE Trans on Plasma Science 33 1372
[11] Niu X J, Gu L, Yu X H 2011 Acta Electrnica Sinica 39 1947 (in Chinese) [牛新建, 顾玲, 于新华 2011 电子学报 39 1947]
[12] Thumm M, Jacobs A, Ayza S 1999 IEEE Trans on Microwave Theory and Techniques 39 301
[13] Zhang Y W 2004 Master Dissertation (Changsha: National University of Desfense Technology) (in Chinese) [张玉文 2004 硕士学位论文 (长沙: 国防科技大学)]
[14] Wang D, Chen D B, Qin F, Fan Z K 2009 Chin. Phys. B 18 04281
[15] Xu A, Wang W X, Wei Y Y, Gong Y B 2009 Chin. Phys. B 18 00810
[16] Xu G, Yu C, Li Z H, Liao Y, Xie P 2013 High Power Laser and Particle Beams 25 394 (in Chinese) [徐刚, 余川, 李正红, 廖勇, 谢平 2013 强激光与粒子束 25 394]
[17] Yu X H 2010 Ph. D. Dissertation (Chendu: University of Electronic Science and Technology of China) (in Chinese) [于新华 2010 博士学位论文 (成都: 电子科技大学)]
[18] Weng W C, Yang F, Demir V 2006 IEEE Ant and Prop Society International Symposium 2006 p2063
[19] Xu G, Liao Y, Xie P, Meng F B, Tang C X 2011 IEEE Transactions on Plasma Science 39 652
[20] Shapiro M A, Temkin R J 2011 Journal of Infrared Milli Terahz Waves 32 283
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