A modular approach for probe-fed and capacitively coupled multilayered patch arrays

Author

Bhattacharyya, Amn K.

Author_Institution

Hughes Space & Commun., Los Angeles, CA, USA

Volume

45

Issue

2

fYear

1997

fDate

2/1/1997 12:00:00 AM

Firstpage

193

Lastpage

202

Abstract

We present a modular technique for analyzing probe-fed, multilayered microstrip phased-array antennas. Each patch layer is assumed to be infinite in extent and represented by its generalized scattering matrix (GSM) with respect to a finite number of Floquet modes. For multilayer patch analysis, the individual GSMs are combined appropriately to yield the overall GSM of the structure. The individual GSM are obtained using the Galerkin method. The probe layer is represented by its generalized impedance matrix (GIM) which is deduced using Floquet modal analysis and the variational method. The GSMs and GIM are combined appropriately to yield the input impedance seen by the probe. Numerical results computed with this technique are shown to agree favorably with available data. Results for two-layered patch arrays and capacitively coupled patches are also presented

Keywords

Galerkin method; S-matrix theory; antenna feeds; antenna phased arrays; antenna theory; capacitance; electric impedance; microstrip antenna arrays; probes; Floquet modal analysis; Floquet modes; Galerkin method; capacitively coupled multilayered patch arrays; generalized impedance matrix; generalized scattering matrix; input impedance; microstrip phased array antennas; modular approach; multilayer patch analysis; patch layer; probe fed multilayered patch arrays; two-layered patch arrays; variational method; Bandwidth; GSM; Impedance; Microstrip antenna arrays; Microstrip antennas; Moment methods; Phased arrays; Probes; Scattering; Transmission line matrix methods;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.560337

Filename

560337