Monopulse Fabry-Perot Resonator Antenna

In this paper, a monopulse Fabry-Perot resonator (FPR) antenna is presented, which consists of four sub-array as cells, each one is a Fabry-Perot resonator antenna. An assembly Fabry-Perot resonator cell consists of partially reflective surface (PRS) as cover, a metal-dielectric surface as ground plate and an aperture coupled rectangular patch as primary radiator. Taking advantage of highly directional radiation properties and low complexity with single-feed system of Fabry-Perot resonator antenna, the feeding network of proposed monopulse antenna can be simplified easily, compared with traditional microstrip monopulse antenna. The simulation results show that the maximal gain at operating frequency is 23.7 dBi, and the null-depth of the difference pattern are less than -30 dB in both E- and H-Plane.