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矩形波导宽边辐射纵缝的MPSTD算法分析 被引量：1

MPSTD Algorithm Simulations of Radiating longitudinal slot in the Broad Face of Rectangular Waveguide
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摘要 针对MPSTD算法在波导宽边辐射纵缝问题中的应用,本文首先提出了基于Maxwell方程特征变量的总场-散射场分离方法,推导了散射场子域与总场子域分界面上的场值更新关系;其次,采用场区划分的思想给出一种激励源的设置方法,有效地将入射场子域、散射场子域及总场子域联系起来,方便了入射场的加入与散射场的提取.以此为基础,对波导宽边辐射纵缝的谐振长度和阻抗特性进行了分析.仿真结果表明,将MPSTD算法应用于波导纵缝问题的分析,可实现对该问题的精确建模,具有较高的计算精度和效率. The MPSTD algorithm is applied to model radiating longitudinal slot in the broad face of rectangular waveguide. Firstly, a method of dividing the total field and the scattering field is proposed based on the characteristic variables of Maxwell＇ s equations.Also the updating functions of the field in the interface between the subdomains of scattering field and total field has been derived. Secondly, the setting of excitation source is proposed by the idea of fields domain partition, which make the subdomains of incident field 、scattering field and total field contacted availably. So it is convenient to place incident field and pick up scattering field. The resonant length and impedance characteristics of longitudinal slot are analyzed by MPSTD. The numerical results show that the MPSTD algorithm is accurate and efficient to analyze the radiating longitudinal slot in the broad face of rectangular waveguide.
作者 杨虎 姜永金 田立松 毛钧杰
机构地区 国防科技大学电子科学与工程学院 空军雷达学院电子对抗系
出处 《电子学报》 EI CAS CSCD 北大核心 2008年第6期1169-1173,共5页 Acta Electronica Sinica
关键词 多区域时域伪谱算法(MPSTD) 波导纵缝 mulfidomain pseudospectral time-domain（MPSTD）algortihm longitudinal shunt slot
分类号 TN957 [电子电信—信号与信息处理]
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参考文献9

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同被引文献12

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电子学报
2008年 第6期

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