Title :
Analysis and Design of 2D Planar, Metallic, Periodic Structures using the Coupled Field Expansion Method
Author :
Yading Li ; Esselle, Karu P.
Author_Institution :
Dept. of Electron. Eng., Macquarie Univ., Sydney, NSW
Abstract :
The coupled field expansion method (CFEM) has been proposed, and validated recently by applying to frequency selective surfaces (FSS) and printed artificial magnetic conductor (AMC) surfaces. In this paper, we demonstrate another novel application of the CFEM - designing a 2D FSS to behave as a circular polarizer as well as a reflector over a wide operating frequency band. The polarizer transforms a linearly polarized incident wave into a circularly polarized reflected wave. For one example design at 11.8 GHz, its 3 dB axial ratio (AR) bandwidth is 43% and 1 dB AR bandwidth is 33%. It can be compactly printed on a lightweight substrate like FR4. To gain insight into the features and properties of the polarizer, the results of a comprehensive parametric study are discussed.
Keywords :
frequency selective surfaces; periodic structures; planar antennas; polarisation; 2D planar structures; circular polarizer; coupled field expansion method; frequency selective surfaces; lightweight substrate; metallic structures; periodic structures; polarizer transforms; printed artificial magnetic conductor surfaces; Axial Ratio; Circular Polarization; Coupled Field Expansion Method; EBG; FSS; Polarization Transformer; Polarizer;
Conference_Titel :
Antennas and Propagation, 2007. EuCAP 2007. The Second European Conference on
Conference_Location :
Edinburgh
Print_ISBN :
978-0-86341-842-6
