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基于互补开口谐振环的结构设计了一种新型的极化可重构天线。与传统的180°对称开口谐振环不同的是采用90°夹角的开口结构,通过控制开口的状态,能够实现2.6GHz频率的左右圆极化和2.4GHz线极化的转换。当天线左右开关状态不同的时候,天线的结构非对称,可将天线看做变形的开口谐振环,其能够实现圆极化;当天线左右开关都处于开的状态时,天线可以看做是双环缝微带天线,实现线极化。2.6GHz的左右圆极化的3d B轴比带宽为100MHz,-10d B阻抗带宽2.20~2.80GHz(600MHz),2.4GHz线极化的阻抗带宽是2.1~2.55GHz(450MHz),适用于无线移动通信。
A novel polarization reconfigurable antenna is designed based on the structure of the complementary open-ended resonant ring. Different from the traditional 180 ° symmetrical open-ended resonant ring, the opening structure with the included angle of 90 ° is adopted. By controlling the state of the opening, the left-right circular polarization of 2.6 GHz and the conversion of 2.4 GHz linear polarization can be realized. When the left and right antenna switching state is different, the antenna structure is asymmetric, the antenna can be seen as a deformed open-ended resonant ring, which can achieve circular polarization; when the antenna left and right switches are open, the antenna can be seen as a double ring Microstrip antenna, to achieve linear polarization. The 2.6GHz round biconcave 3d B-axis bandwidth is 100MHz, the -10d B impedance bandwidth is 2.20 ~ 2.80GHz (600MHz), the 2.4GHz line polarization impedance bandwidth is 2.1 ~ 2.55GHz (450MHz), suitable for wireless mobile Communication.