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本文使用时域有限差分法分析了宽缝微带天线的频率阻抗特性，不同的馈电方式对宽缝微带天线阻抗特性的影响，及改善债电带线与缝之间匹配的措施。在分析计算的基础上设计了一种工作于C波段的加脊宽维微带无线，回波损耗大于10dB的相对带宽可达25％。
In this paper, the time-domain finite difference method is used to analyze the frequency impedance characteristics of wide-gap microstrip antennas, the influence of different feeding modes on the impedance characteristics of wide-gap microstrip antennas and the measures to improve the matching between bond lines and seams. On the basis of the analysis and calculation, a kind of wide-band-dimensional microstrip wireless with C-band is designed. The relative bandwidth with the return loss larger than 10dB is up to 25%.