Development and Validation of New Reverberation Chamber for Wireless Devices

Abstract

This paper proposes a reverberation chamber structure consisting of new reflectors and mode stirrers for electromagnetic compatibility and wireless terminal measurements. The key design considerations for them are determined through a reasonable approach to analyze the eigenmode for a reverberation chamber and the standard deviation of its working volume based on 3D simulation. The final designs are expected to improve the standard deviation performance of the initial structure of the reverberation chamber and provide a better mode stirring environment. The results measured in the fabricated chamber demonstrate that these predictions are clearly realized. The results satisfy the main requirements of this paper, which are defined in consideration of the specifications of commercial reverberation chamber products. Therefore, the reverberation chamber of this paper is expected to be useful for performance measurement and evaluation of commercial wireless terminals. To verify this logical approach to obtain a good design and its results, the results measured in the actual fabricated reverberation chamber are described along with analytical and computational results.

Monte-Carlo Based Numerical Dosimetry in Reverberation Chamber Exposure Systems Employed for in-Vivo Rodent Bioassays

“…The design of well-performing RCs is not a trivial task [3]- [4], [28], and the field homogeneity and variability in any RC to be used for bioeffects studies needs to be thoroughly characterized [10], [17].…”

Enhancing the Number of Modes in Metasurfaced Reverberation Chambers for Field Uniformity Improvement

“…Inspired by this analytical method, in this paper we consider different cases to investigate the enhancement of the number of modes in a metasurfaced RC, defined as a RC equipped with a stirrer (similar to traditional RCs) and with at least one metasurface in the walls. Distinct from previous methods [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ], we design four different types of metasurfaces, including single unit cell (two cases), two unit cells with arbitrary phase difference, and 3-bit unit cells with random arrangement. Then, we study the effects of these different metasurfaces by considering three cases, with one, two, and four walls of the cavity equipped with these four kinds of metasurfaces (equivalent to twelve different cases).…”