Low-profile circularly polarized Fabry-Perot resonator antenna array with substrate integrated waveguide feed network

A circularly polarized Fabry‐Perot resonant cavity antenna using frequency selective surface ‐based partial reflecting surface

“…In reference [8], thanks to the wide-band characteristics of the feed antenna, the broadband of CP F-P resonant cavity antenna can be realized by designing PRS whose reflection coefficient phase changes smoothly with frequency. The reference 6,7,10 adopt FSS-based PRS, which have positive reflection coefficient phase slope in the target frequency range. PRS in literature 18,19 is traditional dielectric superstrate.…”

“…To improve the gain performances of antenna, the Fabry-Perot (F-P) resonant cavity antenna was proposed, while some achievements have been obtained with the in-depth study of numerous scholars. For the application of CP antennas, the Fabry-Perot (F-P) resonant cavity antenna can efficiently increase the gain of the original CP patch antenna by loading partial reflecting surfaces (PRS) in the maximum radiation direction [6][7][8][9][10][11][12][13][14][15][16][17] Although there exist so many researches, the inherent narrow-band effect of F-P resonant cavity antennas and the negative reflection coefficient phase slope of traditional dielectric PRS [18][19][20] make them difficult to adapt to modern antenna broadband application scenarios. On the other hand, frequency selective surface (FSS), 21 which is widely used in antenna systems, provides a novel train of thought for the design of CP F-P resonant cavity antenna.…”