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Coupled mode theory is an effective tool for analysis and synthesis of overmoded waveguides, but the inverse problem has not been solved yet. This paper completed the iterative procedure to solve the inverse problem. The new method can design automatically and fast various mode converters, mode transducers and horn antennas with special radial pattern. Compared with conventional methods, the structure design using the new method has more advantages in electromagnetic and structural properties. Two design examples are given: dual band TM01-TE11 mode converter and smooth-wall feed horn antenna. The two working frequencies of the dual band TM01-TE11 mode converter are 8.75 GHz and 10.3 GHz, and the radius is 16 mm. The converter efficiencies exceed 99% at the two working frequencies. The smooth-wall feed horn antenna converts the TE11 mode to Gaussian beam effectively. Simulation results agree well with the theoretical predictions.
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Keywords:
- coupled mode theory /
- mode converter /
- mode transducer /
- iterative method
[1] Thumm M K, Kasparek W 2002 IEEE Trans. on Plasma Sci. 30 3
[2] Kumric H, Thumm M K, Wilhelm R 1988 INT. J. Electron. 64 1
[3] Vinogradov D V, Denisov G G 1991 Int. J. Infrared Millim. Waves 12
[4] Yang S W, Qing A Y 2005 IEEE Trans. on Plasma Sci. 33 4
[5] Flugel H, Kuhn E 1988 IEEE Trans. on Microwave Theory Tech. 36 2
[6] Sun X, Zhao Q, Li H F 2008 Acta Phys. Sin. 57 4 (in Chinese) [孙旭, 赵青, 李宏福 2008 57 4]
[7] Denisov G G, Kalynova G I, Sobolev D I 2004 Radiophysics and Quantum Electronics 47 8
[8] Sobolev D I, Denisov G G 2010 IEEE Trans. on Plasma Sci. 38 10
[9] Luneville E, Krieg J M 1998 IEEE Trans. on Microwave Theory Tech. 46 1
[10] Sporleder F, Unger H G 1979 Waveguide Tapers Transitions and Couplers (London: Peregrinus on behalf of the Institution of Electrical Engineers) p30
[11] Wang Q, Zhou H J, Yang C, Li B, Ye J 2013 High power Lasers and Particle Beams 25 3 (in Chinese) [王强, 周海京, 杨春, 李彪, 叶建 2013 强激光与粒子束 25 3]
[12] Wang Q, Zhou H J, Yang C, Li B 2013 High power Lasers and Particle Beams 25 2 (in Chinese) [王强, 周海京, 杨春, 李彪 2013 强激光与粒子束 25 2]
[13] Fan Y W, Zhong H H, Li Z Q, Shu T, Zhang J D, Zhang J, Zhang X P, Yang J H, Luo L 2007 J. Appl. Phys. 102 103304
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[1] Thumm M K, Kasparek W 2002 IEEE Trans. on Plasma Sci. 30 3
[2] Kumric H, Thumm M K, Wilhelm R 1988 INT. J. Electron. 64 1
[3] Vinogradov D V, Denisov G G 1991 Int. J. Infrared Millim. Waves 12
[4] Yang S W, Qing A Y 2005 IEEE Trans. on Plasma Sci. 33 4
[5] Flugel H, Kuhn E 1988 IEEE Trans. on Microwave Theory Tech. 36 2
[6] Sun X, Zhao Q, Li H F 2008 Acta Phys. Sin. 57 4 (in Chinese) [孙旭, 赵青, 李宏福 2008 57 4]
[7] Denisov G G, Kalynova G I, Sobolev D I 2004 Radiophysics and Quantum Electronics 47 8
[8] Sobolev D I, Denisov G G 2010 IEEE Trans. on Plasma Sci. 38 10
[9] Luneville E, Krieg J M 1998 IEEE Trans. on Microwave Theory Tech. 46 1
[10] Sporleder F, Unger H G 1979 Waveguide Tapers Transitions and Couplers (London: Peregrinus on behalf of the Institution of Electrical Engineers) p30
[11] Wang Q, Zhou H J, Yang C, Li B, Ye J 2013 High power Lasers and Particle Beams 25 3 (in Chinese) [王强, 周海京, 杨春, 李彪, 叶建 2013 强激光与粒子束 25 3]
[12] Wang Q, Zhou H J, Yang C, Li B 2013 High power Lasers and Particle Beams 25 2 (in Chinese) [王强, 周海京, 杨春, 李彪 2013 强激光与粒子束 25 2]
[13] Fan Y W, Zhong H H, Li Z Q, Shu T, Zhang J D, Zhang J, Zhang X P, Yang J H, Luo L 2007 J. Appl. Phys. 102 103304
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