Design of Tilted-Beam Fabry-Perot Antenna with Aperiodic Partially Reflective Surface
Keywords:
Big data, Fabry-Perot (FP) antenna, Hybrid Real-Binary Bat Algorithm (HRBBA), Partially Reflective Surface (PRS), tilted-beam antennaAbstract
A fast synthesis model for designing highgain tilted-beam antennas with the aperiodic partially reflective surface (PRS) is presented in this paper. In this model, concepts of array synthesis and thinning are introduced to realize the tilted beam and control the sidelobe level (SLL). Since a large number of data need to be processed during the optimization process, an efficient hybrid real-binary bat algorithm (HRBBA) is proposed and embedded in the model to optimize the loop widths and the absence of the square loops on the PRS. As an example, an antenna with an expected tilted beam in the elevation plane (? = 40°) is manufactured and measured, and both the simulated and measured results show that the antenna can tilt its beam toward the expected direction with good performance.
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