Characteristic impedance modelling of circular loop and square loop frequency selective surface (FSS) on hybrid material

An impedance modeling for a unit cell of the circular loop and square loop FSS structure is presented in this paper. The unit cell of the circular loop and square loop FSS are designed and simulated using the CST Microwave Studio software at 2.4 GHz based on industrial, scientific and medical bands (ISM). The design FSS structure consists of FSS structures placed on the FR4 and glass. The reflection (S11) and transmission (S21) of the design FSS structure is analyzed based on the six types of configuration that have been set up. The hybrid material (FR4 and glass) effect the transmission and reflection signal of the FSS. The highest efficiency for circular loop FSS and square loop FSS are 91.4% and 88.1% with a return loss of -25.31 dB and -18.72 dB by using configuration 1. The frequency response of the FSS is shifted to the lower part when the hybrid materials are used. So, the size of the FSS can be reduced by using hybrid materials to achieve the desired frequency response.

[1]  Christos Mias,et al.  An investigation into feasibility of designing frequency-selective windows employing periodic structures, final report for the Radiocommunications Agency , 2006 .

[2]  Kuo-Sheng Chin,et al.  A Low-Profile Frequency Selective Surface With Controllable Triband Characteristics , 2013, IEEE Antennas and Wireless Propagation Letters.

[3]  Daryoush Habibi,et al.  Design of RF/Microwave efficient buildings using frequency selective surface , 2011, 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications.

[4]  T. K. Wu.  Frequency selective surface and gridarray , 2014 .

[5]  B. H. Ahmad,et al.  Impedance modeling for a unit cell of the square loop frequency selective surface at 2.4 GHz , 2013, 2013 Loughborough Antennas & Propagation Conference (LAPC).

[6]  A. Williamson,et al.  Equivalent circuit modelling of a frequency selective plasterboard wall , 2005, 2005 IEEE Antennas and Propagation Society International Symposium.

[7]  Z. Cendes,et al.  Plane wave scattering from frequency-selective surfaces by the finite-element method , 2002 .

[8]  R. Langley,et al.  Frequency selective surfaces on biased ferrite substrates , 1994 .

[9]  Ben A. Munk,et al.  Frequency Selective Surfaces: Theory and Design , 2000 .

[10]  Mesut Kartal,et al.  A New Equivalent Circuit Based FSS Design Method by Using Genetic Algorithm , 2010 .

[11]  Hang Tuah Jaya.  PHASE SHIFT OF THE TRANSMISSION COEFFICIENTS FOR FREQUENCY SELECTIVE SURFACES , 2013 .

[12]  Richard Langley,et al.  Equivalent-circuit models for frequency-selective surfaces at oblique angles of incidence , 1985 .

[13]  Clive Parini,et al.  Equivalent circuit method for analysis and synthesis of frequency selective surfaces , 2006 .

[14]  Hiroshi Nakashima,et al.  Scattering from a periodic array of arbitrary shaped elements on a semiinfinite substrate , 1993 .

[15]  A. Frenkel,et al.  Absorbing Frequency-Selective-Surface for the mm-Wave Range , 2008, IEEE Transactions on Antennas and Propagation.

[16]  Ying Liu,et al.  A novel application of frequency selective surface in dual-band WLAN antenna , 2012, ISAPE2012.

[17]  Haifeng Cheng,et al.  Absorbing properties of frequency selective surface absorbers with cross-shaped resistive patches , 2007 .

[18]  R. Langley,et al.  Equivalent circuit model for arrays of square loops , 1982 .

[19]  F. Bayatpur.  Metamaterial-Inspired Frequency-Selective Surfaces. , 2009 .