Hybrid T-shaped monopole / dielectric resonator antenna as EMI sensor

2009 International Conference on Industrial and Information Systems (ICIIS) Pub Date : 2009-12-01 DOI:10.1109/ICIINFS.2009.5429883

Saswati Ghosh

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引用次数: 1

Abstract

The increased use of high frequency electronic equipment in modern day technologies causes electromagnetic interference with each other. To avoid this, the detection of unwanted electromagnetic radiations is required in industry where electromagnetic interference and compatibility (EMI/EMC) problems are quite an important issue. For EMI measurement, it is required to place a sensor to receive the radiation from the equipment. In this paper, a dielectric loaded T-shaped ultra wideband monopole antenna is designed and used as sensors for measuring electromagnetic interference. The performance of a sensor depends on its antenna factor, which is the ratio of the incident electric field on the antenna surface to the received voltage at the load end. Here the antenna factor of the same antenna is presented for the desired and cross polarization of the incident field. The results for antenna factor show an ultra wide bandwidth with the cross polarization isolation better than 86 dB / m for the T-monopole / DRA as EMI sensor. The simulated return loss characteristics show well agreement with the measured data of a prototype antenna.

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混合t形单极/介电谐振器天线作为电磁干扰传感器

在现代技术中，高频电子设备的使用越来越多，导致彼此之间产生电磁干扰。为了避免这种情况，在工业中需要检测有害的电磁辐射，其中电磁干扰和兼容性(EMI/EMC)问题是相当重要的问题。对于电磁干扰测量，需要放置一个传感器来接收来自设备的辐射。本文设计了一种载介质的t型超宽带单极天线，并将其作为电磁干扰传感器。传感器的性能取决于其天线因子，即天线表面的入射电场与负载端接收电压的比值。本文给出了同一天线在入射场的期望极化和交叉极化情况下的天线因子。天线因子分析结果表明，t单极子/ DRA作为电磁干扰传感器具有超宽的带宽，交叉极化隔离优于86 dB / m。模拟的回波损耗特性与原型天线的实测数据吻合良好。

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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2009 International Conference on Industrial and Information Systems (ICIIS)

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