Multimode Equivalent Networks for the Design and Analysis of Frequency Selective Surfaces

A modular technique originally proposed for waveguide junctions, the multimode equivalent network approach based on the integral equation formulation (IEMEN), is extended to the analysis of multilayer frequency selective surfaces integrated with waveguide array antennas. This technique represents ea...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2007-10, Vol.55 (10), p.2824-2835
Main Authors: Monni, S., Gerini, G., Neto, A., Tijhuis, A.G.
Format: Article
Language:English
Subjects:
Admittance
Admittance matrix
Antenna arrays
antenna phased arrays
Antennas
Applied sciences
Diffraction, scattering, reflection
Equivalence
Exact sciences and technology
Formulations
Frequency selective surfaces
frequency selective surfaces (FSS)
impedance matrix
Integral equations
Multilayers
Networks
Nonhomogeneous media
periodic structures
Phased arrays
Radiocommunications
Radiowave propagation
Scattering parameters
Surface impedance
Telecommunications
Telecommunications and information theory
Transmission line matrix methods
Waveguide junctions
Waveguides
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Description
Summary:A modular technique originally proposed for waveguide junctions, the multimode equivalent network approach based on the integral equation formulation (IEMEN), is extended to the analysis of multilayer frequency selective surfaces integrated with waveguide array antennas. This technique represents each layer and transition between layers in terms of a generalized impedance or admittance matrix, obtained directly from the solution of an integral equation with reduced kernel. Thanks to the adopted formulation, the integral equation needs to be solved only in a limited set of frequency points. The IEMEN method is validated by comparison with results available in literature.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2007.905846