Using ( 0 ) mode of the unloaded microstrip antenna analysed shorting post rectangular microstrip patch antenna deduced the calculating formula of input impedance and the calculating results were illustrated .

用 未 加载微带 天线的（0）模分析了含短路针的矩形微带贴片天线，推导了输入阻抗的计算公式，给出了计算结果。