Experiment device for X-band HPM feed output window dielectric breakdown

zhang zhiqiang; qiu shi; fang jinyong; zhang qingyuan; hou qing; chang chao; jiao yongchang

Volume 22 Issue 07

Jun. 2010

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Article Navigation > High Power Laser and Particle Beams > 2010 > 22(07): 0-

gao qiwen, li shaohui. Explosion dynamics of heteroclusters in ultraintense femtosecond laser field[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

zhang zhiqiang, qiu shi, fang jinyong, et al. Experiment device for X-band HPM feed output window dielectric breakdown[J]. High Power Laser and Particle Beams, 2010, 22.

gao qiwen, li shaohui. Explosion dynamics of heteroclusters in ultraintense femtosecond laser field[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

zhang zhiqiang, qiu shi, fang jinyong, et al. Experiment device for X-band HPM feed output window dielectric breakdown[J]. High Power Laser and Particle Beams, 2010, 22.

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Experiment device for X-band HPM feed output window dielectric breakdown

1.
National Laboratory on Antennas and Microwave Technology,Xidian University,Xi’an 710071,China;
2.
Northwest Institute of Nuclear Technology,P.O.Box 69-26,Xi’an 710024,China;
3.
Department of Engineer Physics of Tsinghua University,Beijing 100084,China

Publish Date: 2010-06-30

Abstract

Abstract

A new type of X-band horn feed has been designed for the dielectric breakdown experiment of high power microwave(HPM) feed output window. The feed is made of a horn of variable flare angle and a movable dielectric cover. By adjusting the distance between the horn face and the dielectric cover, the electric field on the dielectric cover can be changed. Numerical simulation results show that under the VSWR less than 1.15 and E-plane being equal to H-plane, the variation of electric field intensity is about 32.6 kV·cm-1 to 87 kV·cm-1 for the distance changing from 0 mm to 400 mm. The need of electric field variation for dielectric breakdown is satisfied, when the degree of vacuum is ３×１０-3 Pa, and the pulse width is 20 ns. The experiment device is designed and processed according to the
- high power microwave,
- dielectric breakdown,
- feed,
- output window,
- numerical simulation,
- horn of variable flare angle,
- pattern

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