【摘要】 提出一种新式单点馈电的小型圆极化微带贴片天线 .首次采用有机高分子磁性材料实现圆极化微带天线 ,并在贴片表面开槽 .这两项措施使天线尺寸缩减约 78% ,圆极化带宽为 1.3% ,尤其是有机磁性基片的应用使天线驻波比带宽 (10 d B Return L oss)达 10 .1% (15 5 MHz) ,同时具有易调谐、制造公差要求低的特点 .文中给出数值分析与实测结果 ,证实了理论设计方法的有效性.更多还原

【Abstract】 A novel miniaturized single feed microstrip antenna for circular polarization is proposed, which for the first time uses organic magnetic substrate and inserts a group of four slots on the circular patch. The design leads to a size reduction of about 78% compared with conventional types, and a CP bandwidth of 1.3%, with the properties of easy tuning and relaxed fabrication tolerances. Moreover, the application of organic magnetic substrate results in SWR bandwidth (10 dB return loss) of 10.1% or 155 MHz. Numerical and experimental results are presented to show the validity of the theoretical design method.更多还原