Multilayer effects on cavity-backed slot antennas

Multilayer effects on cavity-backed slot antennas

A hybrid technique of the finite-element method and the method of moments (FEM/ MoM) is used to analyze the effects of multilayered superstrates on cavity-backed slot (CBS) antennas. The spectral-domain approach is used to compute the MoM admittance matrix. An asymptotic extraction technique is appl...

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Veröffentlicht in:IEEE transactions on antennas and propagation 2004-03, Vol.52 (3), p.880-887
Hauptverfasser: Vouvakis, M.N., Balanis, C.A., Birtcher, C.R., Polycarpou, A.C.
Format: Artikel
Sprache:eng
Schlagworte:
Admittance
Antenna radiation patterns
Antennas
Asymptotic properties
Computational efficiency
Convolution
Data mining
Finite element method
Finite element methods
Impedance
Mathematical analysis
Mathematical models
Moment methods
Multilayers
Nonhomogeneous media
Slot antennas
Spectra
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Beschreibung
Zusammenfassung:A hybrid technique of the finite-element method and the method of moments (FEM/ MoM) is used to analyze the effects of multilayered superstrates on cavity-backed slot (CBS) antennas. The spectral-domain approach is used to compute the MoM admittance matrix. An asymptotic extraction technique is applied to improve the computational efficiency of the convolution integrals. Effects on the input impedance, efficiency, gain, and radiation patterns are presented for different antennas. The numerical results are validated with measurements and published data.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2004.824672