Approximation Techniques for Planar Periodic Structures

The rigorous calculation of electromagnetic properties of periodic meshes using moment methods requires considerable algebraic work and computer resources. In this paper, a number of easy to use approximation techniques for analyzing thin structures with square, rectangular, and circular holes are p...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 1985-10, Vol.33 (10), p.1083-1088
Main Authors: Compton, R.C., Rutledge, D.B.
Format: Article
Language:English
Subjects:
Apertures
Applied sciences
Diffraction, scattering, reflection
Electromagnetic diffraction
Electromagnetic waveguides
Exact sciences and technology
Impedance
Inductance
Moment methods
Periodic structures
Radiocommunications
Radiowave propagation
Rectangular waveguides
Strips
Student members
Telecommunications
Telecommunications and information theory
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Summary:The rigorous calculation of electromagnetic properties of periodic meshes using moment methods requires considerable algebraic work and computer resources. In this paper, a number of easy to use approximation techniques for analyzing thin structures with square, rectangular, and circular holes are presented. Formulas for the effective impedante of these meshes are described which can easily take into account oblique incidence and the presence of a dielectric substrate. In addition, techniques for analyzing more complex-shaped apertures such as a cross are discussed. These methods are more accurate than existing approximation techniques and can be applied to a wide range of situations that could not be handled before.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.1985.1133173