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Volume 32 Issue 6
Jun.  2010
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Han Hui-peng, Wang Yong, Song Jin-xing. Parasitic-Mode-Suppressing Method in TM310-Mode Cylindrical Resonator for High Power Multi-beam Klystron[J]. Journal of Electronics & Information Technology, 2010, 32(6): 1401-1405. doi: 10.3724/SP.J.1146.2009.00768
Citation: Han Hui-peng, Wang Yong, Song Jin-xing. Parasitic-Mode-Suppressing Method in TM310-Mode Cylindrical Resonator for High Power Multi-beam Klystron[J]. Journal of Electronics & Information Technology, 2010, 32(6): 1401-1405. doi: 10.3724/SP.J.1146.2009.00768

Parasitic-Mode-Suppressing Method in TM310-Mode Cylindrical Resonator for High Power Multi-beam Klystron

doi: 10.3724/SP.J.1146.2009.00768
  • Received Date: 2009-05-20
  • Rev Recd Date: 2009-09-28
  • Publish Date: 2010-06-19
  • A new parasitic-mode-suppressing method for TM310 mode (operating mode) cylindrical resonator is presented in this paper. In order to suppress TM020 mode, a receiving-antenna is set into the resonator, and then the expression for frequency offset is derived based on the electromagnetic theory. Furthermore, two conclusions can be obtained from the formula: frequency offset of a mode only depends on the modes electric field in the position of the receiving-antenna; setting the antenna suitably can make frequency offsets of TM310 mode and TM020 mode differently, so the frequency interval between TM310 mode and TM020 mode may be enlarged, which helps avoid the interference of TM020 mode in the TM310 mode resonator. On the other hand, short-circuit- pole-array set into the resonator is used to suppress the TM+310 mode. By means of CST-MWS, this kind of resonator in X-band is simulated, which shows the availability of the parasitic-mode-suppressing method.
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