Abstract
AbstractA novel low‐radar cross section (RCS) microstrip antenna with radiation performance and antenna volume maintained is proposed in this paper. Different from other antenna RCS reduction methods, the proposed antenna applies shaping method on frequency selective surface (FSS) ground plate to achieve further RCS reduction. In order to obtain the effect of subtracting square slots, an antenna with normal FSS ground is designed as reference antenna. The modified antenna with slotted FSS ground shows more significant RCS reduction compared with reference antenna in the frequency range 4 to 7.5 GHz, the maximum RCS reduction is 14.62 dBsm at 4.22 GHz. And the gain of the modified antenna is increased about 0.2 dB in contrast with the reference antenna. Besides, the modified and reference antenna are fabricated and measured. It is shown that the simulation and measured results are in good agreement.
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