The results of experiment indicated that the best matchedimpedance is not at a point when coefficient is 1 but in the range of 1.5 to 1.65. A proposal was made that radius…
The hexagon fractional slot structure is chosen, the gradually changed CPW feed is adopted. Not only the bandwidth of matchedimpedance is expanded, but also the antenna's miniaturization is realized.
选择正六边形分形缝隙结构，采用渐变的共面波导馈电，不仅拓宽了阻抗带宽，而且实现了天线的小型化。
3
The model uses the effective impedance of the microstrip line as the value of matched resistive load and assign it into the RL mesh region in a proper proportion.