期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 65, 期 12, 页码 6968-6975出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2017.2766439
关键词
Circular polarization (CP); crossed bowtie dipole; linear polarization (LP); p-i-n diodes; polarization-reconfigurable antennas; reconfigurable antennas; wideband
资金
- Ministry of Science, ICT and Future Planning [ACC-2016-DDI-008752]
A simple design of a wideband antenna with the capability of switching its operation among five polarization states is proposed. The primary radiator consists of two bowtie dipoles arranged orthogonally through double printed rings. The polarization-reconfigurability is realized by electronically switching three p-i-n-diode pairs. By controlling the current paths from the feeding coaxial line to each dipole arm and among these arms, the antenna can change its radiation among circular polarization (CP) with both rotating senses and linear polarization at three different angles, namely, 0 degrees, 90 degrees, and 45 degrees. The fabricated prototype exhibits an impedance bandwidth (BW) of 37.1% from 2.2 to 3.2 GHz for all polarization states. The axial ratio BW for both CP states is 50.4%, covering the above frequency range. A measured realized gain of greater than 6.6 dBi and a radiation efficiency of around 80% over the overlapped BW are achieved for all states.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据