The paper describes the designs of a frequency-reconfigurable, polarization reconfigurable and pattern reconfigurable antennas using metasurfaces (MS). The frequency-reconfigurable and polarization reconfigurable antennas are composed of a simple circular patch antenna or slot antenna as the source antenna and a circular MS with the same diameter, with both source antenna and MS implemented using planar technology. The pattern reconfigurable antenna is composed of a circular patch antenna as the source antenna and a semicircular MS with the same diameter. In all these reconfigurable antennas, the MS is placed directly atop of the source antenna, making the antenna very compact and low profile with a thickness of only 0.05λ0. By rotating the MS around the center with respect to the source antenna, the frequency, polarization or pattern of the reconfigurable antenna can be reconfigured.

The 2014 Progress In Electromagnetics Research Symposium (PIERS 2014), Guangzhou, China, 25-28 August 2014. In PIERS Proceedings, 2014, p. 2400-2404

published_or_final_version