Wideband Microstrip Patch Antenna with Low RCS Using Multi-Mode Resonance
2021
A wideband microstrip patch antenna with low radar cross section (RCS) using multi-mode resonance is proposed in this letter. Initially, a wideband shorted patch antenna (SPA) by utilizing the TM 0,1/2 and TM 0,3/2 modes is designed as the reference antenna. Then, the in-band RCS reduction can be obtained by introducing microstrip resonators. Finally, the proposed SPA is simulated and discussed. The result shows the antenna has generated the bandwidth for |S 11 |<−10dB of about 12.7% ranging from 3.67 to 4.17 GHz. Meanwhile, RCS reduction in the operation band of the proposed antenna in TM and TE polarization is as much as 5 and 8 dB independently as compared with the reference counterpart.
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