Mutual coupling analysis using FDTD for dielectric resonator antenna reflectarray radiation prediction

A simulation technique based on Finite-Difierence Time- Domain (FDTD) is used to analyze mutual coupling efiects in re∞ectarray environment. The neighbouring element method has the ability to analyze actual non-identical re∞ectarray unit-cell accurately compared to the traditional Floquet simulation which assumes all unit- cell is identical. It is also found that the nearest neighbouring unit-cell located in E-plane has a larger mutual coupling efiects compared to the neighbouring unit-cell in H-plane. A good agreement is shown between simulation and measurement results. This technique presents a new prediction method for the radiation pattern of re∞ectarray antenna.

[1]  R. Gillard,et al.  Rigorous analysis of the reflectarray radiating elements: Characterisation of the specular reflection effect and the mutual coupling effect , 2007 .

[2]  Atef Z. Elsherbeni,et al.  BANDWIDTH IMPROVEMENT OF REFLECTARRAY ANTENNAS USING CLOSELY SPACED ELEMENTS , 2011 .

[3]  Saeid Nikmehr,et al.  A NOVEL BANDWIDTH ENHANCEMENT TECHNIQUE FOR X-BAND RF MEMS ACTUATED RECONFIGURABLE REFLECTARRAY , 2011 .

[4]  R. Gillard,et al.  Dielectric resonator antenna reflectarray in Ka-band , 2010, 2010 IEEE Antennas and Propagation Society International Symposium.

[5]  L. Guo,et al.  A Far Field Pattern Analysis Technique for Reflectarrays Including Mutual Coupling Between Elements , 2009 .

[6]  M. Arrebola,et al.  Dual-Polarization Dual-Coverage Reflectarray for Space Applications , 2006, IEEE Transactions on Antennas and Propagation.

[7]  Floquet modal based approach for mutual coupling between elements in array environment , 1996, IEEE Antennas and Propagation Society International Symposium. 1996 Digest.

[8]  Muhammad Yusof Ismail,et al.  PERFORMANCE IMPROVEMENT OF REFLECTARRAYS BASED ON EMBEDDED SLOTS CONFIGURATIONS , 2010 .

[9]  S. Costanzo,et al.  Aperture-Coupled Reflectarrays with Enhanced Bandwidth Features , 2008 .

[10]  W. Park,et al.  Electromagnetic Transmission Through Periodic Narrow Slit with a Finite Thickness , 2011 .

[11]  J. Encinar,et al.  Multifed Printed Reflectarray With Three Simultaneous Shaped Beams for LMDS Central Station Antenna , 2008, IEEE Transactions on Antennas and Propagation.

[12]  Marek E. Bialkowski,et al.  BANDWIDTH CONSIDERATIONS FOR A MICROSTRIP REFLECTARRAY , 2008 .

[13]  Rui Li,et al.  A Novel Element for Broadband Reflectarray Antennas , 2011 .

[14]  Jin Au Kong,et al.  A Finite-Difference Time-Domain Analysis of Wave Scattering from Periodic Surfaces: Oblique Incidence Case , 1993 .

[15]  J. Huang,et al.  Microstrip reflectarray , 1991, Antennas and Propagation Society Symposium 1991 Digest.

[16]  W. Shao,et al.  Novel Broadband Reflectarray Antenna with Compound-Cross-Loop Elements for Millimeter-wave Application , 2007 .

[17]  D. Berry,et al.  The reflectarray antenna , 1963 .

[18]  H. Majid,et al.  Design and Analysis of Microstrip Reflectarray Antenna with Minkowski Shape Radiating Element , 2010 .

[19]  F. Venneri,et al.  Design of microstrip reflect array using data from isolated patch analysis , 2002 .

[20]  Farooq A. Tahir,et al.  Equivalent Electrical Circuit for Designing MEMS-Controlled Reflectarray Phase Shifters , 2010 .

[21]  D. Pozar,et al.  Design of millimeter wave microstrip reflectarrays , 1997 .

[22]  David M. Pozar,et al.  Analysis and design of a microstrip reflectarray using patches of variable size , 1994, Proceedings of IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting.

[23]  Mohd Haizal Jamaluddin,et al.  Reflectarray element based on strip-loaded dielectric resonator antenna , 2008 .

[24]  K. Zaki,et al.  Propagation in periodically loaded dielectric waveguides , 1991 .

[25]  Zhengqing Yun,et al.  Implementation of Floquet Boundary Conditions in FDTD Analysis of Periodic Phased Array Antennas with Skewed Grid , 2000 .

[26]  H. Yang.  Analysis of microstrip dipoles on planar artificial periodic dielectric structures , 2000, C++ Conference.