A linear-to-circular polarization converter based on a second-order band-pass frequency selective surface

In this work, we propose a linear-to-circular transmission polarization converter based on a second-order band-pass frequency selective surface (FSS). The FSS is composed of a three-layer aperture-coupled-patch structure, it can be interpreted as an array of antenna-filter-antenna modules, wherein the antenna is just a circularly polarized corner-truncated square microstrip antenna. A prototype of the proposed polarization converter is analyzed, fabricated and tested. Both simulation and experimental results show that the 3-dB axial ratio relative bandwidth of the polarization converter is over 30%, and the maximum insertion loss is only 1.87 dB; in addition, it can maintain good performance over a wide angular bandwidth at TE incidence.

[1]  A. E. Martynyuk,et al.  A Multilayer Circular Polarizer Based on Bisected Split-Ring Frequency Selective Surfaces , 2014, IEEE Antennas and Wireless Propagation Letters.

[2]  L. Robinson,et al.  Meander-line polarizer , 1973 .

[3]  J. Bornemann.  Computer-aided design of multilayered dielectric frequency-selective surfaces for circularly polarized millimeter-wave applications , 1993 .

[4]  A. Kajiwara,et al.  Line-of-sight indoor radio communication using circular polarized waves , 1995 .

[5]  Ruey-Shi Chu,et al.  Analytical method of a multilayered meander-line polarizer plate with normal and oblique plane-wave incidence , 1987 .

[6]  R. Jackson.  Printed dipoles electromagnetically coupled to coplanar waveguide for linear or circular polarisation , 1986 .

[7]  Gabriel M. Rebeiz,et al.  Antenna-filter-antenna arrays as a class of bandpass frequency-selective surfaces , 2004, IEEE Transactions on Microwave Theory and Techniques.

[8]  D. Pozar,et al.  Frequency-selective surface using aperture-coupled microstrip patches , 1989 .

[9]  Vincent Fusco,et al.  Comparison of frequency-selective screen-based linear to circular split-ring polarisation convertors , 2010 .

[10]  Yingzeng Yin,et al.  MULTIFUNCTIONAL MEANDER LINE POLARIZER , 2009 .

[11]  J. Tharp,et al.  Design and Demonstration of an Infrared Meanderline Phase Retarder , 2007, IEEE Transactions on Antennas and Propagation.

[12]  M. Joyal,et al.  Analysis and Design of Thin Circular Polarizers Based on Meander Lines , 2012, IEEE Transactions on Antennas and Propagation.

[13]  Changiz Ghobadi,et al.  Broadband Circularly Polarized Slot Antenna Array Using Sequentially Rotated Technique for $C$-Band Applications , 2013, IEEE Antennas and Wireless Propagation Letters.

[14]  Yongzhi Cheng,et al.  Ultra-Compact Multi-Band Chiral Metamaterial Circular Polarizer Based on Triple Twisted Split-Ring Resonator , 2016 .

[15]  Guy A. E. Vandenbosch,et al.  Compact circular polarizer based on chiral twisted double split-ring resonator , 2013 .

[16]  V. Fusco,et al.  Anisotropic Impedance Surfaces for Linear to Circular Polarization Conversion , 2012, IEEE Transactions on Antennas and Propagation.

[17]  Juan R. Mosig,et al.  Oblique incidence design of meander-line polarizers for dielectric lens antennas , 2012 .

[18]  Yan Nie,et al.  Asymmetric chiral metamaterial circular polarizer based on twisted split-ring resonator , 2014 .