Title :
Low RCS Microstrip Patch Antenna Using Frequency-Selective Surface and Microstrip Resonator
Author :
Ying Liu ; Yuwen Hao ; Hui Wang ; Kun Li ; Shuxi Gong
Author_Institution :
Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´an, China
Abstract :
A low radar cross section (RCS) microstrip antenna is proposed and investigated in this letter. This design is based on implementation of frequency-selective surfaces (FSSs) and microstrip resonators. By using the FSS ground instead of the solid metal ground, out-of-band RCS reduction can be realized. Moreover, in-band RCS reduction can be obtained by loading microstrip resonators. Significant RCS reduction has been accomplished in the frequency ranges of 3-10 GHz. Compared with the reference antenna, the simulation results show that RCS reduction of the proposed antenna in and out of the operation band is as much as 13 and 17 dB, respectively. Measured results satisfactorily agree with the simulated ones. Radiation performance of the proposed antenna is preserved compared with the reference antenna.
Keywords :
antenna radiation patterns; frequency selective surfaces; microstrip antennas; microstrip resonators; microwave antennas; radar cross-sections; frequency 3 GHz to 10 GHz; frequency-selective surface; in-band RCS reduction; low RCS microstrip patch antenna; microstrip resonators; out-of-band RCS reduction; solid metal ground; Frequency selective surfaces; Microstrip antennas; Microstrip resonators; Radar cross-sections; Resonant frequency; Frequency-selective surface (FSS); microstrip patch antenna; microstrip resonator; radar cross section (RCS) reduction;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2015.2402292
