Polarization reconfigurable metasurface superstrate antenna with low profile
A polarization reconfigurable antenna using metasurface superstrate is proposed in this paper. The proposed antenna consists of a planar coupling slot with an array of metallic rectangular patches with PIN diodes which can be view as a reconfigurable metasurface superstrate, and a DC bias controlling circuit. When the PIN switches are OFF, the antenna can produce left hand circular polarized (LHCP) wave. The simulated results show that the 10 dB impedance bandwidth is 22.6% from 5.1 to 6.4 GHz, and 3 dB AR bandwidth is 16.9% from 5.4 to 6.4 GHz with an average gain of 7.0 dBi. When the PIN switches are ON, the antenna generates linear polarized (LP) wave, the simulated 10 dB impedance bandwidth is 24.6% from 5.0 to 6.4 GHz with an average gain of 6.1 dBi.
2016 10th European Conference on Antennas and Propagation (EuCAP)