背腔式窄縫天線在有耗介質(zhì)中的特性
CHARACTERISTICS OF THE CAVITY-BACKED NARROW SLOT ANTENNA IN A LOSSY MEDIUM
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摘要: 本文利用矩量法與并矢格林函數(shù)相結(jié)合,研究了背腔式窄縫天線在有耗介質(zhì)中的特性。對于矩陣單元的雙重級數(shù),采用泊松求和公式改善了級數(shù)的收斂性;對于矩陣單元的二重積分,分別采用積分中值定理及橢圓積分予以簡化。本文的數(shù)值結(jié)果分別給出了有耗介質(zhì)及天線結(jié)構(gòu)參數(shù)對輸入阻抗的影響,為天線設(shè)計提供了依據(jù)。
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關(guān)鍵詞:
- 背腔式縫隙天線; 有耗介質(zhì); 矩量法; 并矢格林函數(shù)
Abstract: The study of characteristics of the cavity-backed slot antenna in a lossymedium is given by using the moment method and dyadic Green s functions. The Poisson summation formula is used to convert the double series of the elements into a more rapidly converging series, and the integration middle value theorem and elliptic integral are used to simplify the double integral of the elements. Numerical results show the effects of the lossy medium and antenna parameters on input impedance, which could be used in designing cavity-backed slot antenna. -
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