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Application of the Green Function Technique in the Microstrip Patch AntennaAnalysis

机译：绿色功能技术在微带贴片天线分析中的应用

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Microstrip structures are now widely used in microwave systems because of theirgeometrical simplicity, small size and ease of fabrication. The microstrip structure is inhomogeneous along several directions, which makes the accurate analysis of the electromagnetic fields very difficult. Hence, the design of microstrip devices is mostly done with approximative and empirical methods of limited accuracy. In the report Green's function technique is used to analyze rectangular microstrip patches. Scalar Green functions corresponding to the microstrip geometry were derived earlier by the authors. With the aid of these functions surface currents and resonance frequencies of a patch located in the air/dielectric interface can be computed using the method of moments (MoM). To make the implementation of MoM as simple as possible, numerical approximations for scalar Green's functions are developed. These approximations are functions of permittivity, the frequency and the thickness of the substrate. Examples computed results for resonance frquencies of a microstrip patch are given in the present paper.

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