Antenna Reverberation Chamber

Abstract

The use of the reverberation chamber for performing electromagnetic compatibility (EMC) tests and antenna measurements is examined in this article. This kind of chamber exhibits a significant number of advantages compared to the other commonly used test sites. Its low cost, compact, and easily built structure simultaneously appears to host a very “convenient” electromagnetic environment inside the enclosure, with regard to the requirements that are posted by the standard that is followed during the EMC or any other type of test such as antenna measurements. More specifically, antenna radiation efficiency measurements prove to be satisfactorily performed through the use of a reverberating enclosure, as well as other antenna parameters (e.g., input impedance) tests. The basic characteristics of such a structure are presented with regard to the recently introduced IEC 61000‐4‐21 specification and studies available in the literature. The field uniformity requirements are being extensively described, as well as ways of improving the achieved uniformity. The field inside a reverberating enclosure is statistically characterized with the use of the models proposed in the literature, which are experimentally verified. The use of the reverberation chamber at relatively low frequencies is presented, together with its ability to store large amounts of energy. Finally, the different ways of operating a reverberation chamber are described with regard to which of its features is (are) needed for each instance. The whole presentation marks out the usefulness of the reverberation chamber for performing electromagnetic compatibility tests as well as antenna measurements.

Design and Analysis of a 60 GHZ Millimeter Wave Antenna

“…This coefficient does not give any idea of the remaining power which is being radiated or dissipated. Hence it does not clarify whether the antenna is a bad or a better radiator of electromagnetic waves [10]. The antenna and EBG structures are analyzed in the 50-70 GHz range using HFSS.…”

A coplanar waveguide feeding SRR antenna including human body effect

“…However this kind of small antenna has potential application in wireless communication and sensor networks; therefore the human effect should be evaluated. Hence we use the reverberation chamber to obtain the efficiency performance [12] [13]. The phantom used in the simulation has a permittivity (İ r ) of 45, a loss tangent of 0.3, with dimensions of 200 × 200 × 20 mm.…”