Wideband partially reflecting surface antenna with broadband RCS reduction. Issue 6 (26th February 2018)

• Record Type: Journal Article
• Authors: Jiang, Hao; Xue, Zhenghui; Leng, Meifang; Li, Weiming; Ren, Wu
• Is Part Of: IET microwaves, antennas & propagation. Volume 12:Issue 6(2018)
• Page Start: 941
• Page End: 946
• Publication Date: 2018-02-26
• Subjects: broadband antennas -- radar cross‐sections -- defected ground structures -- frequency selective surfaces; wideband partially reflecting surface antenna -- broadband RCS reduction -- PRS antenna -- broadband reduced radar cross‐section reduction -- RCSR -- microstrip patch -- triple‐layer PRS -- defective frequency selective surface ground plane -- positive phase gradient -- band‐stop FSS -- frequency 6.3 GHz; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2017.0630
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : A wideband partially reflecting surface (PRS) antenna with broadband reduced radar cross‐section reduction (RCSR) is demonstrated in this study. The proposed antenna consists of a microstrip patch, a triple‐layer PRS, and a defective frequency selective surface (FSS) ground plane. The PRS is the combination of a dual‐layer RS and an absorbing surface, which is located nearly one‐half of the wavelength above the ground. The RS is a complementary structure with a positive phase gradient, so the wideband gain enhancement is accomplished. In addition, a defective ground plane, which consists of the band‐stop FSS, is designed to obtain an enhanced RCSR. Experimental results illustrate the impedance bandwidth of the presented antenna is 10.2% and the peak gain is 14.4 dBi at 6.3 GHz. Comparing to the patch antenna of the same dimension, a broadband RCSR from 8 to 18 GHz is obtained, where many types of radars are strategically deployed, and the average number of RCSR is 12.6 dB. The proposed PRS antenna is a promising candidate for absorbing elements in scientific and military applications.