Radar cross-section (RCS) reduction using a wideband dual logarithmic step patch polarization rotation reflective meta-surface (PRRM) in microstrip patch antenna is proposed. The investigation proposes the use of designed PRRM to construct a low profile microstrip patch antenna with multiband operation, circular polarization, monostatic RCS reduction in a wider bandwidth, and virtually constant gain over the entire RCS reduction bandwidth. A dual logarithmic step patch PRRM unit cell element with FR 4 superstrate is presented and it provides a relative bandwidth of 70.24% and polarization conversion ratio (PCR) greater than 90% from 6.65 to 13.85 GHz. The designed PRRM unit cells are arranged in 3 × 4 array on both sides of the designed microstrip patch antenna. This arrangement makes the antenna to operate circularly polarized at 10.33, 14.33, and 19.16 GHz with axial ratio values of 2.807, 1.963, and 1.471 dB, respectively. Also, it provides monostatic RCS reduction with 77.9% bandwidth ranging from 6.39 to 14.5 GHZ and virtually constant gain ranging from 8 to 19.7 GHz. The performance of the microstrip patch antenna with the designed PRRM are simulated and experimentally verified.
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