Experimental Investigation of the X-Band Transit-Time Tube Oscillator

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MA Qiao-Sheng, LIU Qing-Xiang, SU Chang, FAN Zhi-Kai, CHANG An-Bi and HU Hai-Ying. Experimental Investigation of the X-Band Transit-Time Tube Oscillator[J]. Chinese Physics C, 2003, 27(6): 542-545.
MA Qiao-Sheng, LIU Qing-Xiang, SU Chang, FAN Zhi-Kai, CHANG An-Bi and HU Hai-Ying. Experimental Investigation of the X-Band Transit-Time Tube Oscillator[J]. Chinese Physics C, 2003, 27(6): 542-545. shu
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Received: 2002-07-05
Revised: 1900-01-01
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Experimental Investigation of the X-Band Transit-Time Tube Oscillator

    Corresponding author: MA Qiao-Sheng,
  • Institute of Applied Electronics, CAEP, Mianyang 621900, China

Abstract: A newly manufactured X-band transit-time tube oscillator is introduced. The major advantages of this oscillator include: 1) simple structure, 2) high conversion efficiency, and 3) RF output frequency almost independent of electron beam voltage. On the accelerator sinus-700, its output power's dependences on system parameters are experimentally investigeted. The experiment results are in excellent agreement with the theoretical predicts, and the design specifications of 9.18GHz microwave frequency, 26ns pulse width and 31% conversion efficiency are reached. At higher powers, the pulse shortening develops. It's presumably because of reflected electrons, which will be traped by a strong magnetic filed, and then disturb the ongoing electron's interaction with microwave.

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