We have designed the backward wave oscillator. A power-pulsed generator oscillated at 24 GHz has higher frequency than current one. It is very inportant to prevent microwave from going into the beam diode, since intence microwave will harmfully affect beam generation. Due to the axial mode operation, there exist a critial value of beam energy for the oscillation. By changing the condition at the SWS end, an enhanced performance of the K-band oversized BWO is observed in a low magnetic field region about 0.8T.
M. R. Amin, K. Minami, K. Ogura, X. Z. Zheng, and T. Watanabe, "Resonance enhancement of radiation from a backward wave oscillator utilizing large diameter corrugated matal structure", J. Phys. Soc. Jpn., Vol. 64, p. 4473, 1995.
W. S. Kim, K. Mianmi, K. Ogura, H. Inada, and T. Watanabe, "Design study of a large diameter backward wave oscillator operating at 24 GHz", J. of Plasma Fusion Research Jpn., Vol. 72, p. 338, 1996.
N. Vlasov, A. G. Shkvarunets, J. C. Rodgers, Y. Carmel, T. M. Antonsen, T. M. Abuefadl, D. Lingze, V. A. Cherepenin, G. S. Nusinovich, M. Botton, and V. L. Granatstein, "Overmoded GW-class surface-wave microwave oscillator", IEEE Trans. Plasma Sci., Vol. 28, p. 703, 2000.
K. ogura, R. yoshida, Y. Yamashita, H. Yamazaki, K. Komiyama, and M. Sakai,
"Study on oscillation starting condition of K-band oversized backward wave oscillator driven by a weakly relativistic electron beamr", J. Plasma Fusion Res., Vol. 6, p. 703, 2004.
K. ogura, R. yoshida, K. Komiyama, M. Sakai, and H. Yamazaki, "Experimental demonstration of mode change in a oversized backward wave oscillator due to
corrugation number", IEET Trans. FM, Vol. 124, p. 456, 2004.
H. Oe, K. Ogura, K. Bansho, H. Iizukaname, A. Sugarawa, and W. S. Kim, “Experimental Study on Disk Type Cold Cathode in Weakly Relativistic Energy Region”, International Congress on Plasma Physics, p. 233, 2008.
O. Watanabe, K. Ogura, T. Cho, and M. R. Amin, "Self-consistent linear analysis of slow cyclotron and cherenkov instabilities", Phys. Rev. E, Vol. 63, p. 6503, 2001.
K. Hahn, M. Hail, I. Fuks, and E. Schamiloglu, "Initial studies of a long pulse relativistic backward wave oscillator utilizing a disk cathode", IEEE Trans. on Plasma Sci., Vol. 30, p. 303, 2002.
K. Ogura, K. Komiyama, M. Sakai, D. Yamada, H. Saito, and H. yamazaki, "Performance of weakly relativistic oversized backward wave oscillators", J. Phys. Soc. Jpn., Vol. 72, p. 2437, 2003.
K. Ogura, Y. Miyazawa, H. Tanaka, Y. Kiuchi, S. Aoyama, and A. Sugawara, "Weakly relativistic K-band oversized backward wave oscillator with bragg reflector at beam entrance of slow wave structure", Plasma Fusion Res., Vol. 2, No. S1041, 2007.
S. Kobayashi, M. Botton, Y. Carmel, T. M. Antonsen, J. Rodgers, A. G. Shkvarunets, and V. L. granatstein, "Electromagnatic properties of periodic cavities coupled aq radiating antenna", IEEE Trans. Microwave Theory Tech., Vol. 26, p. 947, 1998.
이 논문을 인용한 문헌 (3)
Kim, Won-Sop 2009. "A Study of Slow Wave Microwave Waveguide on Period Boundary" 전기학회논문지. The Transactions of the Korean Institute of Electrical Engineers. P, 58(4): 461~464
Kim, Won-Sop 2009. "A Study of Microwave Output Experiment of Slow Wave Waveguide" 전기학회논문지. The Transactions of the Korean Institute of Electrical Engineers. P, 58(4): 465~468
Kim, Won-Sop 2009. "A Study of High Power Microwave Output by K-band Waveguide" 전기학회논문지. The Transactions of the Korean Institute of Electrical Engineers. P, 58(4): 588~591