Practical papers, articles and application notes

Anechoic Chambers are used in many applications in the field of Electrical Engineering. They became very important infrastructure in antenna characterization, EMI/EMC testing and calibration of different types of electronic systems. Many varieties of anechoic chambers were installed by industry in the world to meet their testing requirements. Though the indoor testing of electromagnetic radiating devices began in the early 1950s, many companies started installing these chambers in 1980s onwards. This has led to research work on cost effective design, manufacturing, installation and evaluation of anechoic chambers in a very short span of time. In India, many defense and private organizations were equipped with anechoic chambers for their varied applications. The manufacturing and installation of these chambers in a short time became today´s neccesity for industry. To achieve this, a few simple and effective methods are presented in this paper. The focus of the paper is mainly on design, simulation and validation of the rectangular anechoic chamber used for UWB applications and the experimental results are also presented in the paper.