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为了满足在电磁兼容测试、无线信道模拟和电磁效应实验等多种应用场景中对混响室的需求，设计、开发了一款内部尺寸为3.97 m×2.8 m×1.91 m的可重构混响室。屏蔽室采用2 mm厚铝板作内壁、2 mm厚镀锌钢板作外壁来构成，并开有若干可拆卸预留孔。设计了便于更换和调整的3种材质或形状不同的可重构搅拌器：“Z”字形搅拌器、非对称搅拌器和非规则铝箔搅拌器。根据IEC 61000-4-21(2011)标准，测量3种不同搅拌器下混响室的场均匀性与概率统计分布。测试结果显示，在300 MHz～3 GHz频段重构后的混响室均满足分布均匀、各向同性的场环境要求，证明了此款可重构混响室具有良好性能。
Abstract：In order to meet the needs of Reverberation Chamber(RC) in various application scenarios, such as electromagnetic compatibility testing, wireless channel simulation and electromagnetic effect experiments, a reconfigurable RC with internal dimensions of 3.97 m × 2.8 m × 1.91 m is designed and developed.The shield room is composed of 2 mm thick aluminum plate as the inner wall and 2 mm thick galvanized steel plate as the outer wall, with a number of removable reserved holes.Three reconfigurable stirrers of different materials or shapes are designed for easy replacement and adjustment: the Z-shaped stirrer, the asymmetrical stirrer and the irregular aluminum foil stirrer.According to the IEC 61000-4-21(2011) standard, the field uniformity and probability statistical distribution of the RC under three different stirrers are measured.The test results show that the reconfigurable RC in 300 MHz～3 GHz band meets the requirements of uniform distribution and isotropic field environment, demonstrating that the reconfigurable RC has good performance.
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基本信息:
中图分类号:TN03
引用信息:
[1]蔡潇源,闫丽萍,赵翔.一款可重构混响室的设计、开发与性能测试[J].无线电工程,2022,52(06):1062-1067.
基金信息:
国家自然科学基金面上项目(61877041)~~
2022-06-02
2022-06-02