Analysis on shielding effectiveness of rectangular cavity with apertures by transmission line method

deng xiao-bin; hou chao-zhen

Volume 16 Issue 03

Mar. 2004

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Article Navigation > High Power Laser and Particle Beams > 2004 > 16(03): 0-

liang xian-feng, liu pu-kun. Output characteristics of a Ka-band, second harmonic three-cavity gyroklystron amplifier[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

deng xiao-bin, hou chao-zhen. Analysis on shielding effectiveness of rectangular cavity with apertures by transmission line method[J]. High Power Laser and Particle Beams, 2004, 16.

liang xian-feng, liu pu-kun. Output characteristics of a Ka-band, second harmonic three-cavity gyroklystron amplifier[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

deng xiao-bin, hou chao-zhen. Analysis on shielding effectiveness of rectangular cavity with apertures by transmission line method[J]. High Power Laser and Particle Beams, 2004, 16.

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Analysis on shielding effectiveness of rectangular cavity with apertures by transmission line method

1.
Department of Automatic Control,Beijing Institute of Technology,Beijing 100081,China

Publish Date: 2004-03-15

Abstract

Abstract

This article firstly introduces the basic theory of transmission line method(TLM) which is used to analyze shielding effectiveness of rectangular enclosure with apertures,then expands the fundamental formulas to deal with cases of round hole,multiholes, and arbitrary angle of polarization. Simulation results indicate: (1)when the frequency is under dominant resonant frequency, the closer to the enclosure, the more coupling energy; (2)under resonant frequency, resonance appears between the aperture and the enclosure, which results in low even negative shielding effectiveness in the cavity; (3)sielding effectiveness decreases when polarization angle increases, and shielding of low frequency is better than that of high frequency; (4)fr the same areas, shielding effectiveness of singlehole
- transmission line method (tlm),
- apertures,
- shielding effectiveness

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