Abstract
In this paper, polarization conversion metasurface for both in-band and out-of-band radar cross section reduction and gain improvement of a microstrip patch antenna is presented. The polarization converter metasurface is realized using anisotropic unit cell has a polarization conversion ratio (PCR) of more than 98% and 180o±26o reflection phase deference between its diagonal axes. A chessboard-like metasurface is realized using this unit cell and its mirrored one to achieve the required phase cancellation. The patch antenna is placed at the center of the chessboard and surrounded by the anisotropic unit cell. RCS of the antenna is significantly reduced while its radiation characteristics are preserved and its gain is improved by about 2dB. The proposed design is being fabricated now and the measured results will be presented and discussed at the symposium.
Published Version
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