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本文用矩量法计算了介质衬底上印刷线天线的电流分布和输入组抗。Sommerfeld奇异积分型格林函数用复镜象格林函数(包含了表面波)来代替,使计算过程大为简化。研究了衬底参数对辐射特性的影响。数值结果表明了目前方法的有效性。
In this paper, the current distribution and input impedance of the printed antenna on the dielectric substrate are calculated by the moment method. Sommerfeld singular integral Green’s function is replaced by a complex mirror Green’s function (including surface waves), which simplifies the calculation process. The influence of substrate parameters on the radiation characteristics was studied. Numerical results show the effectiveness of the current method.