Computationally-effective wideband worst-case model of transmission line radiation

2015 IEEE International Symposium on Electromagnetic Compatibility (EMC) Pub Date : 2015-09-14 DOI:10.1109/ISEMC.2015.7256335

D. Tsyanenka, Y. Arlou, E. Sinkevich, S. Maly

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引用次数: 1

Abstract

The analytical model for radiation of a rectilinear uniform transmission line placed above a conducting screen is proposed. The model is intended for diagnostics (express analysis) of unintentional interference in large complexes of radio and electronic equipment. The model makes it possible to compute the envelopes of the amplitude-frequency characteristics for electric and magnetic fields in any spatial point above the screen. Single wire above ground plane, coaxial and triaxial lines with various grounding configurations are considered. The model is based on replacement of the complicated transmission line by an equivalent (in terms of the radiated field) single wire over ground plane. Correctness of the proposed model was verified by comparison with numerical simulation results in the frequency band from 10 kHz to 2 GHz for lines of length from 5 cm to 10 m with various load and source impedances, the line height above the ground plane was varied from the radius of the line to 5 m, the observation point position was up to 5 m away from the center of the line in arbitrary direction.

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传输线辐射计算有效的宽带最坏情况模型

提出了导电屏上直线均匀传输线辐射的解析模型。该模型用于在无线电和电子设备的大型复合体中诊断(快速分析)无意干扰。该模型使计算屏幕上方任意空间点的电场和磁场的幅频特性包络成为可能。考虑各种接地配置的单线、同轴线和三轴线。该模型是基于在地平面上用等效的单线代替复杂的传输线(就辐射场而言)。在10 kHz ~ 2 GHz频段内，对长度为5 cm ~ 10 m、负载和源阻抗各不相同的线路进行数值模拟，验证了该模型的正确性，该线路距离地平面的高度从线路半径到5 m不等，观测点距离线路中心任意方向的距离可达5 m。

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2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)

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