| 计算Sommerfeld型积分远场近似的新方法 |
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| 引用本文： | 龙云亮,蒋鸿雁.计算Sommerfeld型积分远场近似的新方法[J].系统工程与电子技术,1994(10). |
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| 作者姓名： | 龙云亮 蒋鸿雁 |
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| 作者单位： | 广州中山大学电子系 |
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| 摘 要： | 快速准确地计算分层导电媒质中的偶极子产生的电磁场一直受到人们的重视。这个问题一般都涉及到Ｓｏｍｍｅｒｆｅｌｄ型积分的计算。本文介绍一种计算Ｓｏｍｍｅｒｆｅｌｄ型积分的远场近似的新方法，并给出其误差分析。采用该方法，结合复镜像理论，快速方便地得出了三层导电媒质中环天线远区场强的解析表达式，与用其它方法得到的结果完全一致。
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| 关 键 词： | Sommerfeld型积分，远场，分层介质，环形天线，计算方法 |
A New Approach toEvaluate the Far Field Approximation of Sommerfeld-Type Integral |
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| Long Yunliang and Jiang Hongyan.A New Approach toEvaluate the Far Field Approximation of Sommerfeld-Type Integral[J].System Engineering and Electronics,1994(10). |
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| Authors: | Long Yunliang and Jiang Hongyan |
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| Abstract: | Great attention has been paid to calculating rapidly the electromagnetic fields due to adipole embedded in stratified media. This problem is commonly involvedwith the computation of Sommerfeld-type integral.In this paper,a new approach to evaluate the far fleld approximation of Sommerfeld-type integral is introduced and the rigorous error analysis is given.The closed-form expressions of far field of a loop antenna in a three-layered conducting medium are obtained rapid-ly by using the new approach with the complex image theory and the results thus obtained are the same as those given by other methods. |
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| Keywords: | Sommerfeld-type Integral Far field Stratified medium Loop antenna Calculation method |
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