小型圆极化微带天线设计

Design of small circularly polarzed microstrip antenna

与其他极化类型的天线相比,圆极化天线可以接收任意极化的来波,其辐射的电磁波也能被任意极化天线所接收,因此其广泛应用于微信通信、射频识别、WLAN领域。文章基于HFSS研究了几种圆极化天线的设计方式,并采用耦合馈电的方式设计了一种小型化、大带宽、高增益的圆极化微带天线。

Compared with other polarization types of antennnas,circular polarization antenna can receive incoming waves with arbitrary polarization,and its radiated electromagnetic waves can also be received by antennas with arbitrary polarization.Therefore,it is widely used in the fields of wechat communication,RFID and WLAN.1n this paper,HFSS is used to study the design methods of several circularly polarized antennas,and a circularly polarized microstrip antenna with miniaturization,,large bandwidth and high gain is designed by coupling feeding.