Electromagnetic reverberation chambers
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Other Identifiers
- Work cat: Anechoic and reverberation chambers, 2018(indoor measurement facility where electromagnetic waves are reflected by the conducting reflector at the boundaries)
- Wikipedia, viewed Oct. 9, 2018(Electromagnetic reverberation chamber; also: Reverb chamber, or Mode-stirred chamber; environment for electromagnetic compatibility testing and other electromagnetic investigations)
- Engineering compendex, viewed Oct. 9, 2018(uncontrolled term: Electromagnetic reverberation chambers)
- Computers, Networks & Communications; Atlanta, 17 Mar. 2016; via PROQUESTp. 1126 (Electronics and Telecommunications Research Institute; Patent issued for electromagnetic wave reverberation chamber (USPTO 9276325): The electromagnetic wave reverberation chamber is a measuring chamber of which all inner walls do not absorb the electromagnetic wave so that the electromagnetic wave has optimal reverberation time and diffusivity in the chamber in contrast to an anechoic chamber. Thus, the electromagnetic wave anechoic chamber should absorb electromagnetic wave fully by using an electromagnetic wave absorber installed on all inner walls of the electromagnetic wave anechoic chamber. However, the electromagnetic wave reverberation chamber does not need the absorber because the all inner walls of the chamber should reflect the electromagnetic wave fully)
- IEEE transactions on electromagnetic compatibility, VOL. 57, NO. 1, FEBRUARY 2015; viewed online Oct. 19, 2018(Design and Experimental Validation of a Mode-Stirred Reverberation Chamber at Millimeter Waves; Introduction: MODE-STIRRED reverberation chambers (RC) are nowwidely used for conducting electromagnetic compatibility (EMC) measurements. A RC is an electrically large overmoded closed cavity with highly conductive walls. Statistical uniformity and isotropy of the field distribution can be achieved through mechanical or frequency stirring)
Wikipedia description:
An electromagnetic reverberation chamber (also known as a reverb chamber (RVC) or mode-stirred chamber (MSC)) is an environment for electromagnetic compatibility (EMC) testing and other electromagnetic investigations. Electromagnetic reverberation chambers have been introduced first by H.A. Mendes in 1968. A reverberation chamber is screened room with a minimum of absorption of electromagnetic energy. Due to the low absorption, very high field strength can be achieved with moderate input power. A reverberation chamber is a cavity resonator with a high Q factor. Thus, the spatial distribution of the electrical and magnetic field strengths is strongly inhomogeneous (standing waves). To reduce this inhomogeneity, one or more tuners (stirrers) are used. A tuner is a construction with large metallic reflectors that can be moved to different orientations in order to achieve different boundary conditions. The Lowest Usable Frequency (LUF) of a reverberation chamber depends on the size of the chamber and the design of the tuner. Small chambers have a higher LUF than large chambers. The concept of a reverberation chamber is comparable to a microwave oven.
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