Prediction for shielding effectiveness of rectangular metallic enclosure with aperture

Gang, 吴刚 Wu; Xin’gang, 张新刚 Zhang; Bo, 刘波 Liu

doi:10.3788/hplpb20112303.0743

Cited by 1 publication

(1 citation statement)

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“…The electromagnetic environment has become increasingly complex, the fully sealed shielding cavity has good shielding effect, but it is inevitable to open some apertures on the surface of the shielding cavity [1][2][3]. The existence of these apertures can reduce the shielding effectiveness of the shield layer and even have greater influence to inner devices, so the study of the shielding effectiveness of the cavity is necessary.…”

Section: Introductionmentioning

confidence: 99%

The application of improved FDTD algorithm based on mode-matching in shielding cavity

Gao

Kong

2018

MATEC Web Conf.

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Due to the increasing complexity of the electromagnetic environment, the cavity with apertures are used more and more widely in electromagnetic shielding. At present, the time domain finite difference (FDTD) method has a good application effect for the transmission line response problem of a double-layer shield cavity with apertures, but this method usually encounters the boundary problem of semi-open and open areas. Due to the limited computing resources, the truncation of the FDTD region has an impact on the accuracy and speed of the calculation because that is very important. Based on that, this paper puts forward a method of combining mode-matching method with FDTD algorithm, which overcomes the limitation that mode-matching method can only be used for regular waveguide analysis and uses mode-matching method to solve FDTD boundary problems. The improved FDTD algorithm based on mode-matching method enhances the accuracy of the algorithm and guarantees the calculation speed.

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Section: Introductionmentioning

confidence: 99%