Circular Polarization and Reconfigurability of Fabry-Pérot Resonator Antenna Through Metamaterial-Loaded Cavity
Related Research Unit(s)
|Journal / Publication||IEEE Transactions on Antennas and Propagation|
|Online published||22 Jan 2019|
|Publication status||Published - Apr 2019|
|Link to Scopus||https://www.scopus.com/record/display.uri?eid=2-s2.0-85064257284&origin=recordpage|
In this paper, a Fabry-Pérot resonator antenna (FPRA) with a metamaterial-loaded cavity is presented. The proposed antenna preserves the simplicity from single resonant cavity and linearly polarized (LP) feed. A 3-D-printed all-dielectric metamaterial structure with hybrid locally periodic patterns is placed between the superstrate and the ground plane. The loaded metamaterial provides a new configuration for achieving self-generated circular polarization (CP) for the FPRA. Owing to the fact that the generation of CP relies solely on the anisotropy of the metamaterial, independent control of the axial ratio (AR) and directivity becomes possible, thus avoiding potential tradeoffs to be made between the AR bandwidth and the directivity increment. In addition, further polarization agility between CP and LP states can be obtained by employing different angular rotations of the metamaterial with respect to the feed antenna. The proposed concept is verified through a design example carried out at around 10 GHz showing an overlapped impedance and AR bandwidth of 6.7% (from 9.6 to 10.27 GHz). The design considerations are given with the help of performing the ray-tracing analysis. The agreement between the measurement and full-wave simulation justifies the validity.
- Circularly polarized (CP) antenna, partially reflective surface (PRS), polarization reconfigurable antenna, resonant cavity antenna, wideband Fabry-Pérot antenna
IEEE Transactions on Antennas and Propagation, Vol. 67, No. 4, 8621019, 04.2019, p. 2196-2208.
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal
Wu, F & Luk, KM 2019, 'Circular Polarization and Reconfigurability of Fabry-Pérot Resonator Antenna Through Metamaterial-Loaded Cavity', IEEE Transactions on Antennas and Propagation, vol. 67, no. 4, 8621019, pp. 2196-2208. https://doi.org/10.1109/TAP.2019.2893213