Output Circuit of π-TM610 Mode Double-Gap Coaxial Cavity Coupled with Coaxial Line
Wang Hong-yi①; Lin Fu-min②
①Department of Physics, Shantou University, Guangdong 515063, China; ②School of Physics & Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China
Abstract：A π-TM610 mode double-gap coaxial cavity loaded by a coaxial line is proposed as the output circuit of X-band multi-beam klystron. Its main performances, such as bandwidth and power capacity, are studied. The results show that characteristics impedances along different beam hole are still almost equal after the output cavity coupled with a coaxial line. But the external quality factor of the output cavity is too large and difficult to diminish, so that the output bandwidth is small. The output power capacity reaches about 1MW. So it is suitable as a proper output circuit of high power narrowband multi-beam klystron of high radio-frequency.
2009, Vol. 31 
