[1] Kartikeyan M V, Borie E, Thumm M[M]. Gyrotrons: High power microwave and millimeter wave technology, 1-5(2003).

[2] NIU Xin-Jian, GU Ling, YU Sheng et al. Corrugated waveguide mode conversion for 94 GHz second-harmonic gyrotron[J]. J. Infrared Millim. Waves.

[3] DAI Da-Fu. The present status and future developments of high power microwave[J]. Vacuum Electronics, 5, 20-26(2004).

[4] ZHOU Hai-Jing, DING Wu, LIU Qing-Xiang. Research on vlasov-type antenna[J]. High Power Laser and Particle Beams, 14, 431-433(2002).

[5] BIAN Hui-Qi, DU Chao-Hai, PAN Shi et al. Design and analysis of a broadband quasi-optical mode converter with a Denisov launcher[J]. J. Infrared Millim. Waves.

[6] WANG Bai-Suo, LI Sen, WANG Yan et al. Eigen modes in elliptic waveguide[J]. Acta Electronica Sinica, 3, 353-357(2003).

[7] Bogdashov A A, Denisov G G. Asymptotic theory of high-efficiency converters of higher-order waveguide modes into eigenwaves of open mirror lines[J]. Radiophysics and Quantum Electron, 47, 283-296(2004).

[8] Jin J B, Piosczy K B, Thumm M et al. Quasi-optical mode converter/mirror system for a high power coaxial-cavity gyrotron[J]. IEEE Trans on Plasma Sci, 34, 1508-1515(2006).

[9] Lorbeck J A, Vernon R J. Singly curved dual-reflector synthesis technique applied to a quasi-optical antenna for a gyrotron with a whispering-gallery mode output[J]. IEEE Trans Antennas Propag, 39, 1733-1741(1991).

[10] Mobius A W, Casey J A, Kreischer K E et al. An improved design for quasi-optical mode conversion of whispering gallery mode gyrotron radiation[J]. Int J. Infrared Millim. Waves, 13, 1033-1063(1992).

[11] Blank M. High efficiency quasi-optical mode converters for overmoded gyrotrons[D]. PhD thesis(1994).

[12] WANG Bin, DU Chao-Hai, LIU Pu-Kun et al. Study and Design of a quasi-optical mode converter for W-band whispering-gallery mode gyrotron[J]. Acta Physica Sinica, 59, 2512-2518(2010).