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XU Shouxi, YANG Jie, WANG Yong, ZHANG Jian, HUANG Zhongyong, SHEN Jiansong, LI Tiepeng, WANG Ying. Bandwidth Broadening of S-Band Klystron with Self-Developed Output Circuit[J]. CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY, 2020, 40(7): 641-645. DOI: 10.13922/j.cnki.cjovst.2020.07.09
Citation: XU Shouxi, YANG Jie, WANG Yong, ZHANG Jian, HUANG Zhongyong, SHEN Jiansong, LI Tiepeng, WANG Ying. Bandwidth Broadening of S-Band Klystron with Self-Developed Output Circuit[J]. CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY, 2020, 40(7): 641-645. DOI: 10.13922/j.cnki.cjovst.2020.07.09

Bandwidth Broadening of S-Band Klystron with Self-Developed Output Circuit

  • We addressed the problem of relative narrow bandwidth of S-band klystron,originated from adoption of resonant cavity as its high frequency interation circuit.The solution to broaden the output band was the self-developed output circuit of double-gap overlapping-mode coupling cavity,comprising the 1st-cavity,2nd-cavity and coupling slot.First,the design of novel double-gap overlapping-mode output circuit was optimized via theoretical analysis and numerical simulation; next,the output circuit was approximated with an equivalent circuit in calculation of the impedance-frequency characteristics,and the prototyped novel output circuit was cold tested with satisfactory results; and finally,the S-band klystron integrated with the output circuit was experimentally evaluated via hot test.The hot-test results show that the peak output power was greater than 800 kW in 250 MHz range,satisfying the stringent design requirements.
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