摘要
采用曲流技术在贴片内部开十字形缝隙，在贴片边缘开矩形缝隙，并通过对贴片切角形成微扰，设计了一种UHF频段小型圆极化微带天线。设计的贴片天线尺寸为59×59mm^2（即0．176λ），与相同频率相同介质的普通微带贴片天线相比有约54％的尺寸下降。天线的实测结果显示，在898—925MHz内回波损耗小于-10dB，在910—920MHz实现圆极化特性。
This paper designed a kind of miniaturized circular polarization microstrip patch antenna in the UHF frequency band by slotting cross slot inside the patch, slotting rectangular slot at the edge of the patch, and cutting comer of patch. The size of the patch is reduced to 59mm×59mm （0. 176 λ ）, Compared with the traditional CP microstrip antenna, the patch size is reduced up to around 54% at the same frequency. Experimental. results show that the return loss of the antenna is less than -10dB from 898MHz to 925MHz, and achieving the circular polarization characteristics from 910MHz to 920MHz.
出处
《无线通信技术》
2013年第4期35-37,共3页
Wireless Communication Technology
关键词
UHF频段
小型化
圆极化天线
十字缝隙
UHF band
miniaturization
circularly polarized antenna
cross slot
