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An Efficient Numerical Model for the Radiation Analysis of Microstrip Patch Antennas

机译：微带贴片天线辐射分析的有效数值模型

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摘要

An accurate integral equation method based on quasi-static relationship (QSR), thin dielectric sheet (TDS) method and high-order hierarchical Legendre (HOHL) basis function is proposed in this paper for fast analysis of microstrip antennas radiation problems. This technique employs the QSR of the current on the parallel plate capacitor to describe the field continuity boundary condition and to embody the tight coupling between the radiation patch, the ground plane and the substrate of microstrip antenna. The frequency offset problem of conventional VSIE can be effectively eliminated. Moreover, combined with the TDS and the HOHL basis function, the proposed model can provide high accuracy in input impedance and far-field performance with faster convergence speed and lower computational cost. Numerical results are presented to show the accuracy and efficiency of the proposed method.
机译：为了快速分析微带天线的辐射问题，提出了一种基于准静态关系（QSR），薄电介质片（TDS）方法和高阶分级勒让德（HOHL）基函数的精确积分方程方法。该技术利用平行板电容器上电流的QSR来描述场连续性边界条件，并体现辐射贴片，接地层和微带天线基板之间的紧密耦合。可以有效地消除传统VSIE的频偏问题。此外，结合TDS和HOHL基函数，该模型可以提供较高的输入阻抗精度和远场性能，并且收敛速度更快，计算成本更低。数值结果表明了该方法的准确性和有效性。

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