A New Mode Stirrer Design for the Reverberation Chamber

IF 0.6 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Applied Computational Electromagnetics Society Journal Pub Date : 2021-01-01 DOI:10.47037/2021.aces.j.36099

Jiazhi Tang, Furong Li, Junhao Zheng, Xiaoming Chen, Yingsong Li, Juan Chen

引用次数: 2

Abstract

─ In this paper, a mode stirrer composed of random positioned metal plates is proposed for reverberation chamber. The designing procedure of the mode stirrer is presented. The designed stirrer is compared with the common Z-shaped stirrer in both simulation and measurement. It is shown that in general the proposed stirrer outperforms the common Z-shaped stirrer with the same sweeping volume. Nevertheless, the measurement results show that the performance improvement of the designed stirrer becomes insignificant at higher frequencies with additional platform stirring. Albeit the difference, the stirring improvement of the designed stirrer is clearly demonstrated at low frequencies, which is more important due to the inherent low mode density at low frequency. Index Terms ─ Independent sample number, measurement uncertainty, mode stirrer, reverberation chamber.

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混响室新型搅拌器设计

─本文提出了一种由随机定位金属板组成的混响室模态搅拌器。介绍了模态搅拌器的设计过程。将所设计的搅拌器与普通z型搅拌器进行了仿真和实测比较。结果表明，在相同扫气量下，所提出的搅拌器总体上优于普通的z型搅拌器。然而，测量结果表明，在较高频率下，增加平台搅拌，所设计的搅拌器的性能改善并不显著。尽管存在差异，但所设计的搅拌器在低频时的搅拌性能得到了明显改善，这是因为低频时固有的低模态密度更重要。指标项─独立采样数、测量不确定度、模式搅拌器、混响室。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Computational Electromagnetics Society Journal 工程技术-电信学

CiteScore

1.60

自引率

28.60%

发文量

审稿时长

9 months

期刊介绍： The ACES Journal is devoted to the exchange of information in computational electromagnetics, to the advancement of the state of the art, and to the promotion of related technical activities. A primary objective of the information exchange is the elimination of the need to "re-invent the wheel" to solve a previously solved computational problem in electrical engineering, physics, or related fields of study. The ACES Journal welcomes original, previously unpublished papers, relating to applied computational electromagnetics. All papers are refereed. A unique feature of ACES Journal is the publication of unsuccessful efforts in applied computational electromagnetics. Publication of such material provides a means to discuss problem areas in electromagnetic modeling. Manuscripts representing an unsuccessful application or negative result in computational electromagnetics is considered for publication only if a reasonable expectation of success (and a reasonable effort) are reflected. The technical activities promoted by this publication include code validation, performance analysis, and input/output standardization; code or technique optimization and error minimization; innovations in solution technique or in data input/output; identification of new applications for electromagnetics modeling codes and techniques; integration of computational electromagnetics techniques with new computer architectures; and correlation of computational parameters with physical mechanisms.