A method of moments solution of a 2D reverberation chamber using G1DMULT and asymptotic extraction

Author

Karlsson, Kristian ; Carlsson, Jan ; Carlberg, Ulf ; Kildal, Per-Simon

Author_Institution

SP Swedish Nat. Testing & Res. Inst., Sweden

Volume

2

fYear

2004

fDate

20-25 June 2004

Firstpage

1323

Abstract

Reverberation chambers are used for high accuracy antenna measurements. We study mechanical stirring. One convenient method to study the performance of a stirrer is to perform computer simulations. Such simulations are difficult to perform as well as interpret for the three-dimensional case. Therefore, we have in the present work considered a two-dimensional (2D) model of the RC as an initial step. In this model the RC is modelled by using spectral domain techniques as implemented in G1DMULT, and periodic boundary conditions. In order to determine the currents on the mechanical stirrer the method of moments (MoM) is used. The size of the 2D cavity is chosen so that the mode density is the same as in a real 3D cavity with the dimensions 0.8 m by 1 m by 1.6 m and the Q-value is also set to correspond to such a RC.

Keywords

antenna testing; electromagnetic devices; method of moments; reverberation chambers; spectral-domain analysis; 2D cavity; 2D reverberation chamber; G1DMULT; MoM; Q-value; asymptotic extraction; high accuracy antenna measurements; mechanical stirring; method of moments; mode density; performance; periodic boundary conditions; spectral domain techniques; two-dimensional model; Antenna measurements; Boundary conditions; Dielectric losses; Electromagnetic compatibility; Electromagnetic measurements; Moment methods; Nonhomogeneous media; Periodic structures; Reverberation chamber; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2004. IEEE

Print_ISBN

0-7803-8302-8

Type

conf

DOI

10.1109/APS.2004.1330429

Filename

1330429