A novel subwavelength fractal frequency selective surface based on antenna-filter-antenna

Author

Yongjiu Li ; Long Li ; Yongliang Zhang ; Chunsheng Zhao

Author_Institution

Sch. of Electron. Eng., Xidian Univ., Xi´an, China

fYear

2013

fDate

21-25 July 2013

Firstpage

276

Lastpage

278

Abstract

In this paper, a novel multilayer frequency selective surface (FSS) with fractal structures is designed using subwavelength element based on the antenna-filter-antenna (AFA) concept. The upper fractal patches are inductive and non-resonant, and the fractal slots on the ground provide a capacitance. The thin substrate is equivalent to a transformer and a resonant frequency is formed. The cell periods along x and y directions are the same and the total height is the 8mm (λ / 3.75 at center operating frequency 10 GHz). Moreover, the fractional bandwidth reaches 30%. To well analyze and understand the operating mechanism of the FSS, the equivalent circuit model is proposed to analyze the transmission and reflection characteristics. The results of the simulation agree well with the results of the synthesis.

Keywords

frequency selective surfaces; AFA concept; FSS; antenna filter antenna concept; capacitance; equivalent circuit model; fractal structures; fractional bandwidth; multilayer frequency selective surface; resonant frequency; subwavelength element; subwavelength fractal frequency selective surface; thin substrate; Fractals; Frequency selective surfaces; Laboratories;

fLanguage

English

Publisher

ieee

Conference_Titel

Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2013

Conference_Location

Chengdu

Type

conf

DOI

10.1109/CSQRWC.2013.6657407

Filename

6657407