Differential Evolution Algorithm and Method of Moments for the Design of Low-RCS Antenna

Author

Wang, Wentao ; Gong, Shuxi ; Wang, Xing ; Guan, Ying ; Jiang, Wen

Author_Institution

Nat. Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´´an, China

Volume

9

fYear

2010

fDate

7/2/1905 12:00:00 AM

Firstpage

295

Lastpage

298

Abstract

This letter introduces a novel technique for low radar cross section (RCS) antenna designs. The differential evolution algorithm (DEA) and the method of moments (MoM) are combined to achieve the RCS reduction and satisfied radiation performance. The antenna geometric parameters are extracted to be optimized by DEA, and a fitness function is evaluated by MoM to represent the performance of each candidate design. The optimization example of the slot patch antenna is presented as a test of the proposed DEA/MoM algorithm. By optimizing the slot location, the given slot antenna realizes the RCS reduction in the broad frequency range of 2-12 GHz at different incident angles, which demonstrates the feasibility of applying the proposed method to antenna RCS reduction.

Keywords

antenna radiation patterns; method of moments; radar antennas; radar cross-sections; slot antennas; antenna geometric parameters; differential evolution algorithm; low-RCS antenna; method of moments; radar cross section; radiation performance; slot antenna; Differential evolution algorithm (DEA); method of moments (MoM); radar cross section (RCS) reduction; slot patch antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2010.2047837

Filename

5445047