Shielding Effectiveness of Periodic Screens Against Finite High-Impedance Near-Field Sources

被引：36

作者：

Araneo, Rodolfo ^{[1
]}

Lovat, Giampiero ^{[1
]}

Celozzi, Salvatore ^{[1
]}

机构：

[1] Univ Roma La Sapienza, Dept Astronaut Elect & Energet Engn, I-00184 Rome, Italy

来源：

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2011年 / 53卷 / 03期

关键词：

Finite source; near field; periodic structures; shielding effectiveness (SE); INTEGRAL-EQUATION ANALYSIS; PLANE-WAVE; REFLECTION;

D O I：

10.1109/TEMC.2010.2081367

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The shielding effectiveness of artificial periodic screens is investigated with reference to high-frequency high-impedance near fields produced by arbitrarily oriented electric dipoles. The screens are formed by metallic objects of arbitrary shape displaced in a 2-D lattice. The problem is first studied through a full-wave approach, using the array scanning method in conjunction with a periodic method of moments in the spatial domain. Next, the shielding problem is solved analytically in some characteristic electromagnetic compatibility configurations through the use of approximate low-frequency homogeneous models together with a classical analysis in the spectral domain. Finally, the solutions are compared with those deriving from the use of the so-called transmission-line approximation. The provided results show the suitability of the analytical approaches in dealing with finite sources different from standard plane-wave excitations and give a useful tool for the design of periodic shields.

引用

页码：706 / 716

页数：11

共 37 条

[1]

*ACD WHIT, 1969, IEE P, V116, P1159

[2]

[Anonymous], 2007, 299 IEEE

[3] Analysis of the shielding performance of ferromagnetic screens [J].

Araneo, R ;

Celozzi, S .

IEEE TRANSACTIONS ON MAGNETICS, 2003, 39 (02) :1046-1052

[4]

Araneo Rodolfo, 2009, 2009 IEEE International Symposium on Electromagnetic Compatibility - EMC 2009, P72, DOI 10.1109/ISEMC.2009.5284662

[5] Exact solution of the low-frequency coplanar loops shielding configuration [J].

Araneo, R ;

Celozzi, S .

IEE PROCEEDINGS-SCIENCE MEASUREMENT AND TECHNOLOGY, 2002, 149 (01) :37-44

[6] A full-wave numerical approach for modal analysis of 1-D periodic microstrip structures [J].

Baccarelli, P ;

Di Nallo, C ;

Paulotto, S ;

Jackson, DR .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2006, 54 (04) :1350-1362

[7]

Bardi I, 1999, IEEE T MAGN, V47, P843

[8] INTEGRAL-EQUATION ANALYSIS OF ARTIFICIAL MEDIA [J].

BLANCHARD, JL ;

NEWMAN, EH ;

PETERS, ME .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1994, 42 (05) :727-730

[9] Comparison of methods for calculating the field excited by a dipole near a 2-D periodic material [J].

Capolino, Filippo ;

Jackson, David R. ;

Wilton, Donald R. ;

Felsen, Leopold B. .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2007, 55 (06) :1644-1655

[10] ELECTROMAGNETIC SHIELDING BEHAVIOR OF WIRE-MESH SCREENS [J].

CASEY, KF .

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 1988, 30 (03) :298-306

← 1 2 3 4 →