Analysis and design of aperture-coupled microstrip patch antennas and arrays fed by dielectric image line

Author

Kanamaluru, Sridhar ; Li, Ming-yi ; Chang, Kai

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA

Volume

44

Issue

7

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

964

Lastpage

974

Abstract

This paper presents the analysis and design of aperture-coupled microstrip patch antennas and arrays fed by an dielectric image line. A theory based on the cavity model of the microstrip patch antenna and the change in the modal voltage of the image line at the aperture was developed to analyze the single element aperture-coupled microstrip patch antenna. The theory developed was combined with the array theory to design linear traveling wave arrays at X-band and Ka-band frequencies. The required taper in the excitations of the individual patches of the array was achieved by varying the aperture dimensions. Experiments show very good results for the antennas and the arrays

Keywords

antenna feeds; antenna theory; antenna travelling wave arrays; dielectric devices; linear antenna arrays; microstrip antennas; Ka-band; X-band; antenna analysis; antenna design; aperture dimensions; aperture-coupled microstrip arrays; aperture-coupled microstrip patch antennas; array theory; cavity model; dielectric image line; experiments; linear traveling wave arrays; Antenna arrays; Apertures; Dielectrics; Frequency; Image analysis; Linear antenna arrays; Microstrip antenna arrays; Microstrip antennas; Patch antennas; Voltage;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.504303

Filename

504303