Optimal design of wideband radar absorbing structure consisting of resistive meta-surface layers

Author

Zhou, S.N. ; Wang, Z.B. ; Feng, Y.J.

Author_Institution

Dept. of Electron. Sci. & Eng., Nanjing Univ., Nanjing, China

Volume

5

fYear

2012

fDate

5-8 May 2012

Firstpage

1

Lastpage

4

Abstract

In this paper we propose an optimal design of ultrawideband (4 ~ 20 GHz) absorbers composed of two resistive meta-surface layers of different square patch arrays. Gradient Descent and Genetic Algorithm are employed to optimize all the parameters through equivalent transmission line circuit model. The circuit parameters are then implemented by a multilayer including two resistive meta-surface of square patch structures. Two types of such absorbing structures, with the total thicknesses close to that of the known theoretical limit, are designed and their performance are verified by full wave simulation.

Keywords

electromagnetic wave absorption; equivalent circuits; genetic algorithms; radar absorbing materials; transmission line theory; circuit parameters; equivalent transmission line circuit model; frequency 4 GHz to 20 GHz; full wave simulation; genetic algorithm; gradient descent algorithm; multilayer; optimal design; resistive meta-surface layers; square patch arrays; square patch structures; ultrawideband absorbers; wideband radar absorbing structure; Absorption; Bandwidth; Capacitance; Dielectrics; Frequency selective surfaces; Integrated circuit modeling; Reflection;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4673-2184-6

Type

conf

DOI

10.1109/ICMMT.2012.6230475

Filename

6230475