Analysis of ring and rectangular slot FSS using a new equivalent circuit method
DOI:
https://doi.org/10.1109/ICATT.2005.1497001Keywords:
numerical method, frequency selective structure, FSSAbstract
A new method which uses the spatial modal decomposition of the single FSS element has been applied for the analysis of a thin frequency selective structure (FSS) composed of rectangular slot elements. The method is based on the equivalent circuit approach and has exhibited more accurate results compared with conventional equivalent circuit approaches. In addition the method performs much faster compared to rigorous solutions. A good agreement in comparison with other methods and measurements has been revealed for several kinds of thin FSS.References
MARCUVITZ, N. Waveguide Handbook. McGraw-Hill, 1951.
ANDERSEN, I. On the theory of Self-Resonant Grids. Bell System Technical Journal, 1975, v.55, p.1725-1731.
LEONARD, T.W.; COFER, J.W. A new equivalent circuit representation for the Jerusalem cross, IEE Conf. Publ., 1978, n.169, p.65-69.
HAMDY, S.M.A.; PARKER, E.A. Comparison of modal analysis and equivalent circuit representation of E-plane of the Jerusalem cross. Electron. Lett., 1982, v.18, n.2, p.94-95, doi: http://dx.doi.org/10.1049/el:19820064.
LANGLEY, R.J.; DRINKWATER, A.J. Improved empirical model for the Jerusalem cross. IEE Proc. H. Microwave, Opt. Antennas, Feb. 1982, v.129, n.1, p.1-6, doi: http://dx.doi.org/10.1049/ip-h-1.1982.0001.
LANGLEY, R.J.; PARKER, E.A. Equivalent circuit model for arrays of square loops. Electron. Lett., 1982, v.18, n.7, p.294-296, doi: http://dx.doi.org/10.1049/el:19820201.
LANGLEY, R.J.; PARKER, E.A. Double-square frequency-selective surfaces and their equivalent circuit. Electron. Lett., 1983, v.19, n.17, p.675-677, doi: http://dx.doi.org/10.1049/el:19830460.
LEE, C.K.; LANGLEY, R.J. Equivalent-circuit models for frequency-selective surfaces at oblique angles of incidence. IEE Proc. H, Microwave, Opt. Antennas, Oct. 1985, v.132, n.6, p.395-399, doi: http://dx.doi.org/10.1049/ip-h-2.1985.0070.
SAVIA, S.B.; PARKER, E.A. Equivalent circuit model for superdense linear dipole FSS. IEE Proc., Microwave Antennas Propag., Feb. 2003, v.150, n.1, p.37-42, doi: http://dx.doi.org/10.1049/ip-map:20030107.
CALLIGHAN, P.; PARKER, E.A.; LANGLEY, R.J. Reduction of mode coupling effects in double layer dipole slot dichroics. ICAP Proc., 1991, p.701-704.
