微带天线容易产生谐波和杂散波,造成天线性能的降低。将哑铃形缺陷地结构和分形缺陷地结构加入微带天线中,经过理论分析和实验测量,结果表明缺陷地结构不仅能够抑制天线的谐波和杂散波分量,还能抑制天线的交叉极化。与哑铃形缺陷地结构相比,分形缺陷地结构不仅能更好的提高微带天线性能,还能减少刻蚀接地板的面积,提高地板利用效率。

The harmonic and Stray wave is produced easily,which make the performance of microstrip patch antenna to reduce.The dumbbell-shaped defected ground structure and the fractal defected ground structure are applied to patch antenna.The results of calculation and measurements show that the defected ground structure not only suppress the harmonic and stray wave,but also reduce the cross-polarization level.The fractal defected ground structure not only improves the performance of antenna better,but also uses the ...