Abstract
In this paper, both in-band and out-of-band radar cross section (RCS) reduction as well as gain enhancement of a conventional probe-fed microstrip patch antenna around 10 GHz is presented. Anisotropic unit cell which has $180^{\circ}\pm 27^{\circ}$ phase difference between its x- and y-polarized reflected components is used and arranged in a chessboard-like surface. The central part of the chessboard surface is replaced by the microstrip patch antenna. The simulated results show that the proposed antenna possesses remarkable in-band and out-band monostatic RCS reduction from 9 GHz to 16 GHz (60%). The RCS reduction is more than 5dB with maximum RCS reduction is about 24dB for normally impinging both x- and y-polarized waves. Furthermore, the radiation characteristics of the antenna have been well kept and the antenna gain is improved by about 1.16dB. The proposed antenna is being fabricated now the measured results will be presented during the conference.
Published Version
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