Differential aperture coupling technique for passive and active integrated antenna design

Author

Chan, K.M. ; Lee, E. ; Gardner, P. ; Dodgson, T.E.

Author_Institution

Dept. of Electron. Electr. & Comput. Eng., Univ. of Birmingham

Volume

1

Issue

2

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

458

Lastpage

464

Abstract

A novel contactless method of spatially coupling differential signals from a transmission line to an antenna structure is described. A differential signal is used to generate a current maximum/virtual short circuit under the antenna and electromagnetic energy is efficiently coupled from the transmission line to the antenna via an aperture. Two different passive microstrip patch antenna designs using this differential aperture coupling technique will be demonstrated. This coupling technique has also been successfully applied in an active integrated differential antenna design. Simulation and measurement results are also presented to validate the coupling concept. A simplified transmission line model has also been developed and successfully used to model the differential aperture coupling technique

Keywords

active antennas; antenna feeds; aperture-coupled antennas; coupled transmission lines; electromagnetic coupling; microstrip antennas; active integrated differential antenna design; antenna structure; aperture antenna; electromagnetic energy; microstrip patch antenna design; spatial coupling differential signal; transmission line;

fLanguage

English

Journal_Title

Microwaves, Antennas & Propagation, IET

Publisher

iet

ISSN

1751-8725

Type

jour

DOI

10.1049/iet-map:20060073

Filename

4167708