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SLAC energy doubler (SLED) type radio-frequency pulse compressors are widelyused in large-scale particle accelerators for converting long-durationmoderate-power input pulse into short-duration high-power output pulse. Thephase shift keying (PSK) is one of the key components in SLED pulse compressionsystems. Performance of the PSK will influence the output characteristics ofSLED, such as rise-time of the output pulse, the maximal peak power gain, andthe energy efficiency. In this paper, high power microwave source based onpower combining and pulse compression of conventional klystrons was introduced,the nonideal PSK with slow switching speed and without power output during theswitching process were investigated, the experimental results with nonideal PSKagreed well with the analytical results.

Studies on the switching speed effect of the phase shift keying in SLED for generating high power microwave