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首次采用有限元与谐振腔模型结合的混合有限元方法对有金属方柱的薄基片矩形贴片天线的谐振频率进行了数值计算和实验分析，谐振频率的计算结果与实验结果符合很好。
For the first time, the resonant frequency of the thin rectangular antenna with thin metal substrate was calculated by numerical simulation and experimental analysis using the mixed finite element method combined with the finite element model and the cavity model. The calculation results of resonant frequency accord with the experimental results very well.