Modeling semi-anechoic electromagnetic measurement chambers

Anechoic vs. Semi Anechoic Rooms

Minimum Usage of Ferrite Tiles in Anechoic Chambers

Anechoic chambers which are used for emission and immunity testing require expensive ferrite tiles on their inner surfaces. This paper describes a method to reduce the number of required ferrite tiles, whilst ensuring a reliable and specified test region. In this method, the positions of some ferrite tiles are found optimally to keep the performance of the anechoic chamber as high as possible. ...

Emc 2002 International Wrocław Symposium and Exhibition on Electromagnetic Compatibility Validation of Semi-anechoic Chambers with Tuned Halfwave-dipoles Working over a Wide Frequency Band

In this paper the latest techniques for validation of anechoic chambers are described. The Short Dipole Site Validation Method (SDSV) is based on the use of the CISPR 16 dipole in an expanded, non-resonant frequency range. The SDSV idea is great as it combines advantages of the Site Reference method (direct comparison of two site attenuations, no antenna factors involved, quasi-swept frequency ...

MEASUREMENT AND MODELING OF NOx OFFGASING FROM FEP TEFLON CHAMBERS

The College of Engineering, Center for Environmental Research and Technology (CE-CERT) at the University of California (UCR) is undertaking a new project to develop a “Next Generation” environmental chamber for evaluating chemical mechanisms under lower pollutant conditions than has previously been possible (Carter et al., 1999). A major objective of this project is to generate mechanism evalua...

Measurement and Computational Modeling of Radio-Frequency Electromagnetic Power Density Around GSM Base Transceiver Station Antennas

Evaluating the power densities emitted by GSM1800 and GSM900 BTS antennas isconducted via two methods. Measurements are carried out in half a square meter grids around twoantennas. CST Microwave STUDIO software is employed to estimate the power densities in order fordetailed antenna and tower modeling and simulation of power density. Finally, measurements obtainedfrom computational and experime...