A novel Dual-Band Double-Sided High-Impedance Surface (DB-DS-HIS) with systematic design methodology

摘要

This paper presents a systematic design methodology of dual-band double-sided high-impedance surface (DB-DS-HIS). The high impedance characteristics seen from both sides of the structure at two distinct frequencies are investigated theoretically based on the transmission line (TL) model and the surface impedance method. The proposed DB-DS-HIS is presented and parametric study on the reflection properties of the double-sided HIS structure loaded with additional patches/rings is given. Finally, the proposed DBDS-HIS unit cells are combined as a chessboard structure to reduce the radar cross section (RCS). More than 15 dB RCS reduction in the first frequency band from 8 GHz to 12 GHz with maximum reduction of 37 dB at 10 GHz and more than 10 dB RCS reduction in the second frequency band from 14 GHz to 16 GHz with maximum reduction of 29 dB at 14.7 GHz is achieved. Since the structure is double sided, the RCS of the chessboard structure is reduced at the two frequency bands from both sides. (C) 2019 Elsevier GmbH. All rights reserved.