| 渐近波形估计应用于地限大导体平面上凹槽散射场宽角度方向性函数的快速获取 |
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| 引用本文： | 童创明,周后型,等.渐近波形估计应用于地限大导体平面上凹槽散射场宽角度方向性函数的快速获取[J].微波学报,2001,17(1):7-12. |
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| 作者姓名： | 童创明 周后型 |
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| 作者单位： | [1]东南大学无线电工程系毫米波国家重点实验室，南京2100 [2]东南大学无线电工程系毫米波国 |
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| 基金项目： | 国家杰出青年基金资助项目(69625102)。 |
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| 摘 要： | 本文基于渐近波形估计（AWE）技术和矩量法（MOM）快速预测无限大导体平面上任意形状凹槽的散射场方向性函数。用矩量法求解得到给定方向入射波照射下凹槽口径磁流，用AWE技术得到任意方向人射波照射下口径磁流，进而计算出散射场的方向性函数。计算结果表明AWE能逼近MOM计算结果，同时在计算速度上可提高几十倍。
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| 关 键 词： | 渐近波形估计技术 散射场 凹槽 宽角度方向性函数 |
Fast Calculation of Wide Angle Scattering Fields ofa Groove in a Perfectly Conducting Plane Basedon Asymptotic Waveform Evaluation Technique |
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| TONG Chuangming,ZHOU Houxing,HONG Wei.Fast Calculation of Wide Angle Scattering Fields ofa Groove in a Perfectly Conducting Plane Basedon Asymptotic Waveform Evaluation Technique[J].Journal of Microwaves,2001,17(1):7-12. |
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| Authors: | TONG Chuangming ZHOU Houxing HONG Wei |
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| Abstract: | The method of moments (MOM) combining with the asymptotic waveform evaluation (AWE) technique is used to predict scattering fields of an arbitrarily shaped groove in a perfectly conducting plane.In MOM,the magnetic current in the aperture irradiated at a given direction by electromagnetic (EM) wave is obtained.In the AWE technique,the magnetic current in the aperture at any angle within the angular range is obtained which is in turn used to calculate the directional function of scattering fields of an groove.It was observed that AWE could result in considerable saving of CPU time. |
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| Keywords: | MOM AWE technique Scattering field Groove |
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