可调谐谐振频率的矩形微带天线改进模型

An Improved Model for the Rectangular Microstrip Antenna of Tunable Resonant Frequency

为提高矩形微带天线谐振频率的计算精度 ,提出了平均有效介电常数的概念 ,推出了具有和不具有空气隙的矩形微带天线谐振频率的改进公式 ,并给出了具有空气隙矩形微带天线的谐振频率随空气隙高度的变化曲线 ,阐述了仿真结果与实验值吻合得较好。

In order to improve the calcuative precision of the resonant frequency of rectangular microstrip antenna, the conception of average effective permittivity is presented, the improved formula of the resonant frequency of rectangular microstrip antenna with and without airgaps are educed, and the curve of the resonant frequency of rectangular microstrip antenna with air gaps along with the heigth of the air gaps is given, then comes to a conclusion that the theoretic values corresponds with the expermental ones well.