With the development of the wireless communication system, the antenna has been

widely used as an important tool in data transmission. However, there are many

characteristic parameters for antenna need to be calculated by complex calculation.

For example the mutual input impedance of dipole antenna, the Directivity coefficient

and the Gain coefficient. Therefore, it is quite practically hard to implement by hand,

especially for student who was studying on it. In order to solve this problem, this

thesis has establishes the calculation procedure for the complex parameters of antenna

by using MATLAB software.