Simulation Methodology for the Assessment of Field Uniformity in a Large Anechoic Chamber

Autor:	Irina Munteanu, Ralf Kakerow
Rok vydání:	2014
Předmět:	Materials science Anechoic chamber Acoustics Electromagnetic compatibility Surface impedance Thin sheet Electrical and Electronic Engineering Antenna (radio) Reflectivity Electronic Optical and Magnetic Materials Field uniformity Electromagnetic reverberation chamber
Zdroj:	IEEE Transactions on Magnetics. 50:213-216
ISSN:	1941-0069 0018-9464
DOI:	10.1109/tmag.2013.2283154
Popis:	The paper presents a simulation methodology for assessing the properties of a generic anechoic chamber, taking into account wall and floor coatings, measurement table, and antenna. Unlike previous approaches, the absorbing walls of the chamber are modeled as infinitely thin sheets. This leads to considerable improvement of the simulation performance. To this aim, a technique for extracting equivalent surface impedance material parameters from wall reflectivity measurements is presented. The large electrical size of the problem, its multiscale character, given by the large dimensions of a typical chamber on one hand and the fine details of the antenna on the other hand, and the complicated material parameters represent the challenges of such a simulation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::15bb740d90bf5fd4bb2549cb32a09cf2 https://doi.org/10.1109/tmag.2013.2283154 Zobrazit plný text záznamu