Title :
Analysis of Miniature Frequency Selective Surfaces Based on Fractal Antenna–Filter–Antenna Arrays
Author :
Zheng, Shufeng ; Yin, Yingzeng ; Fan, Jun ; Yang, Xi ; Li, Biao ; Liu, Weixing
Author_Institution :
Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´´an, China
fDate :
7/4/1905 12:00:00 AM
Abstract :
A novel type of miniature bandpass frequency selective surface (FSS) based on fractal antenna-filter-antenna (AFA) array is proposed. The AFA-based FSSs exhibit superior frequency selectivity and have lower profile than conventional FSSs. However, they commonly occupy considerably large unit sizes. Fractal geometries are utilized in this letter to reduce the unit cell of AFA-based FSSs. The iteration order and iteration factors of the utilized fractals including Minkowski island-shaped transmit/receive patches and fractal cross-shaped coupling aperture are analyzed. A prototype of the proposed FSS operated at C-band is fabricated and tested using waveguide measurement setup, and good agreement is obtained between measured and simulated results.
Keywords :
antenna arrays; fractal antennas; frequency selective surfaces; geometry; iterative methods; AFA-based FSS; Minkowski island-shaped transmit-receive patches; fractal AFA array; fractal antenna-filter-antenna arrays; fractal cross-shaped coupling aperture; fractal geometries; iteration factors; iteration order; miniature bandpass FSS; miniature frequency selective surfaces; waveguide measurement setup; Apertures; Couplings; Fractals; Frequency selective surfaces; Prototypes; Resonant frequency; Antenna–filter–antenna (AFA); fractal; frequency selective surface (FSS); miniaturization;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2012.2189749
