This paper focuses on the RF study of a C-band barrel open cavity （BOC） pulse compressor. The operating principle of BOC is presented and the technical specifications are determined. The main parts of BOC such as th...This paper focuses on the RF study of a C-band barrel open cavity （BOC） pulse compressor. The operating principle of BOC is presented and the technical specifications are determined. The main parts of BOC such as the cavity, the matching waveguide, the coupling slots and the tuning rings were numerically sinmlated by 3-D codes software HFSS and CST Microwave Studio （MWS）. The ＂whispering gallery＂ mode TM6,1,1 with an unload Q of 100000 was chosen to oscillate in the cavity. An energy multiplication factor of 1.99 and a peak power gain of 6.34 was achieved theoretically.展开更多
An S band SLED-type pulse compressor has been manufactured by the Institute of High Energy Physics,Beijing, trying to reach 100 MW maximum input power, which means the output peak power is about 500 MW at the phase re...An S band SLED-type pulse compressor has been manufactured by the Institute of High Energy Physics,Beijing, trying to reach 100 MW maximum input power, which means the output peak power is about 500 MW at the phase reversal time. To improve the reliability at very high power, amplitude modulation and phase modulation with flat-top output are considered, and RF modulation studies on the S-band SLED are presented in this paper.Furthermore, a method is developed using the CST Microwave Studio transient solver to simulate the time response of the pulse compressor, which can verify the modulation theory. In addition, the experimental setup was constructed and the flat-top output obtained in low power tests. Both amplitude modulation and phase modulation methods can give flat-top output, and the average power gain for both methods is almost the same.展开更多
文摘This paper focuses on the RF study of a C-band barrel open cavity （BOC） pulse compressor. The operating principle of BOC is presented and the technical specifications are determined. The main parts of BOC such as the cavity, the matching waveguide, the coupling slots and the tuning rings were numerically sinmlated by 3-D codes software HFSS and CST Microwave Studio （MWS）. The ＂whispering gallery＂ mode TM6,1,1 with an unload Q of 100000 was chosen to oscillate in the cavity. An energy multiplication factor of 1.99 and a peak power gain of 6.34 was achieved theoretically.
基金Supported by National Natural Science Foundation of China(11475201)
文摘An S band SLED-type pulse compressor has been manufactured by the Institute of High Energy Physics,Beijing, trying to reach 100 MW maximum input power, which means the output peak power is about 500 MW at the phase reversal time. To improve the reliability at very high power, amplitude modulation and phase modulation with flat-top output are considered, and RF modulation studies on the S-band SLED are presented in this paper.Furthermore, a method is developed using the CST Microwave Studio transient solver to simulate the time response of the pulse compressor, which can verify the modulation theory. In addition, the experimental setup was constructed and the flat-top output obtained in low power tests. Both amplitude modulation and phase modulation methods can give flat-top output, and the average power gain for both methods is almost the same.
