Analysis of stacked microstrip patches with a mixed potential integral equation

Author

Barlately, L. ; Mosig, Juan R. ; Sphicopoulos, Thomas

Author_Institution

Lab. d´´Electromagn. et d´´Acoust., Ecole Polytech. Federale de Lausanne, Switzerland

Volume

38

Issue

5

fYear

1990

fDate

5/1/1990 12:00:00 AM

Firstpage

608

Lastpage

615

Abstract

A method based on the mixed potential integral equation for the analysis of flat microstrip antennas in a double-layer substrate is presented. The method is used to compute the input impedance of a stacked patch configuration. This structure permits a larger bandwidth and may also provide dual-frequency operation. The Green´s functions are discussed in detail, and numerical results are obtained for the propagation constant of the dominant surface wave. Theoretical and experimental results are compared for a dual-frequency and a broadband stacked patch antenna. Theoretical results for the input impedance are in good agreement with measurements. The difference between theoretical and experimental results for the resonant frequency is less than 4.5% in all cases

Keywords

Green´s function methods; antenna theory; electric impedance; integral equations; microstrip antennas; Green´s functions; broadband stacked patch antenna; dominant surface wave; double-layer substrate; dual-frequency operation; flat microstrip antennas; input impedance; mixed potential integral equation; numerical results; propagation constant; stacked microstrip patches; Antenna measurements; Antennas and propagation; Bandwidth; Green´s function methods; Integral equations; Microstrip antennas; Patch antennas; Propagation constant; Surface impedance; Surface waves;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.53488

Filename

53488