Results 41 to 50 of about 544,892 (367)
A Reverberation Chamber with Polycylindrical Walls [PDF]
The Journal of the Acoustical Society of America, 1951 A reinforced concrete reverberation chamber has been constructed with diffusing cylinders of random size cast in the ceiling and walls. Energy loss in the empty chamber is low because the rigid, heavily enameled walls have a low absorption coefficient and the attenuation loss in the air is moderate for such a small volume.
J. H. Botsford, R. N. Lane, R. B. Watson
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The Effect of Zigzag Boundaries on the Reverberation Chamber Performance
IEEE Access, 2021 The stirrer design is important in a reverberation chamber measurement system. Previous study shows that the rotating radius of the stirrer plays a key role for the stirrer performance. However, to identify the contribution from the structure, optimizing
Kai Chen, Qian Xu, Xueqi Shen, Chun Ren
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Measurement of Absorption Cross Section of a Lossy Object in Reverberation Chamber Without the Need for Calibration [PDF]
, 2016 A reliable and simple procedure is proposed to measure the averaged absorption cross section (ACS) of a lossy object in a reverberation chamber (RC). This procedure is based on the time-domain measurement of the ACS in an RC.
Huang, Yi +4 more
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Buildings, 2021 Insufficient diffuseness is the major cause of the poor repeatability and reproducibility of building acoustical measurements in a reverberation chamber. Inaccurate results were reported for the prevailing methods in ISO and ASTM standards. Many previous
Shuying Zhang, Joonhee Lee
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Modeling system throughput of single and multi-port wireless LTE devices [PDF]
, 2012 We have recently introduced a simple theoretical model for estimating the relative throughput of LTE devices. We validated the model through measurements performed in reverberation chamber for 1×2 SIMO with 90ns channel delay spread. In the present paper,
Durisi, Giuseppe +2 more
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PERFORMANCE OF THE REFLECTIVITY MEASUREMENT IN A REVERBERATION CHAMBER [PDF]
Progress In Electromagnetics Research, 2015 n ...
GIFUNI, Angelo +2 more
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A Fast Finite-Difference Time Domain Simulation Method for the Source-Stirring Reverberation Chamber
International Journal of Antennas and Propagation, 2017 Numerical analysis methods are often employed to improve the efficiency of the design and application of the source-stirring reverberation chamber. However, the state of equilibrium of the field inside the chamber is hard to reach.
Wenxing Li, Chongyi Yue, Atef Elsherbeni
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B-Scan in a Reverberation Chamber
IEEE Transactions on Antennas and Propagation, 2016 In this paper, the B-scan technique is applied to a reverberation chamber (RC) for the first time to characterize the time-domain behavior of the chamber. Based on B-scan measurement results, three things are studied in this paper. 1) The statistical behavior of the fields in the time domain is investigated, and it is found that the received power of ...
Qian Xu +5 more
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An improved model for antennas in reverberation chambers [PDF]
2010 IEEE International Symposium on Electromagnetic Compatibility, 2010 We present an improved model for antennas in a reverberation chamber. The derivation of this model is more rigorous than previous derivations and models, but is still, admittedly, overly simplistic. However, this model should be applicable for a special class of antennas (those that can be modeled as an unknown 2-port network between the test port and ...
Ladbury, J. M., Hill, David A.
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Buildings, 2022 In building acoustics, two different problems usually arise. There is a need to comply with established sound insulation parameters, but there are also legislative conditions concerning reverberation time.
Juan C. Rodríguez +2 more
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