Dual-polarised slot-coupled patch antenna excited by a square ring slot

Author

Caso, R. ; Serra, A. ; Buffi, Alice ; Rodriguez-Pino, Marcos ; Nepa, Paolo ; Manara, Giuliano

Author_Institution

Dept. of Inf. Eng., Univ. of Pisa, Pisa, Italy

Volume

5

Issue

5

fYear

2011

fDate

4/1/2011 12:00:00 AM

Firstpage

605

Lastpage

610

Abstract

A novel slot-coupling feeding technique for dual-polarised patch antennas is presented. A square patch is fed through a square ring slot excited by two non-overlapping feed lines printed on the same side of a single-layer substrate. With respect to other slot-coupling feeding techniques for dual-polarised patch antennas, the configuration here proposed exhibits a simple structure and a valuable symmetry property with respect to the two feeding ports, while preserving a satisfactory isolation. To show the working principle and the radiation properties of the proposed slot-coupled patch, a sample antenna operating in the 3.3-3.8-GHz WiMAX^™ frequency band has been designed, prototyped and characterised.

Keywords

WiMax; antenna feeds; microstrip antennas; slot antennas; substrates; WiMAX frequency band; dual-polarised patch antennas; dual-polarised slot-coupled patch antenna; frequency 3.3 GHz to 3.8 GHz; nonoverlapping feed lines; single-layer substrate; slot-coupling feeding technique; square patch; square ring slot;

fLanguage

English

Journal_Title

Microwaves, Antennas & Propagation, IET

Publisher

iet

ISSN

1751-8725

Type

jour

DOI

10.1049/iet-map.2010.0460

Filename

5766090