Study of antennas in reverberation chamber using method of moments with cavity Green's function calculated by Ewald summation

被引：43

作者：

Carlberg, U ^{[1
]}

Kildal, PS ^{[1
]}

Carlsson, J ^{[1
]}

机构：

[1] Chalmers Univ Technol, Dept Signals & Syst, Antenna Grp, S-41296 Gothenburg, Sweden

来源：

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2005年 / 47卷 / 04期

关键词：

cavities; Ewald transformation; Green's function; reverberation chamber;

D O I：

10.1109/TEMC.2005.858755

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：

A numerical model of wires in rectangular metal cavities is introduced for computing antennas in a simplified theoretical reverberation chamber. The code is based on the method of moments, and it uses the Ewald summation for efficient calculation of the cavity Green's function. The Q-value of the chamber is accounted for in the model by a homogeneous material filling the chamber. The S-parameters of two dipoles placed in many random positions in the cavity are computed and averaged to provide the average transfer function of the chamber. This represents mode stirring by moving the antennas, referred to as position stirring. The computed results are compared with theoretical statistical values as well as experimental results. The discrepancies are discussed.

引用

页码：805 / 814

页数：10

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