说明：  matlab编写的计算圆贴片天线贴片半径的程序。用户指定贴片的工作模式，工作频率，以及介质板厚度、介电常数，程序返回贴片半径
(matlab round to prepare the calculation of the radius of patch antenna patch procedure. User-specified mode of the patch, the frequency of job, as well as the medium thickness, dielectric constant, procedures radius back patch)