Reduction of mutual coupling between closely-packed antenna elements using defected ground structure

Author

Zhu, FuGuo ; Xu, Jiadong ; Xu, Qian

Author_Institution

Sch. of Electron. & Inf., Northwestern Polytech. Univ., Xi´´an, China

fYear

2009

fDate

27-29 Oct. 2009

Firstpage

1

Lastpage

4

Abstract

A simple ground plane structure that can reduce mutual coupling between closely-packed antenna elements is proposed. The structure consists of a dumb-bell-like pattern etched in a single ground plane. It is found that isolation of more than -40 dB can be achieved between two parallel individual planar inverted F antennas (PIFAs) sharing a common ground plane. Comparison of the proposed dumb-bell-like defected ground structure (DGS) with other approaches shows its unique capability of reducing mutual coupling. Influence of the designed DGS on radiation pattern and surface current distribution on the ground plane is also investigated.

Keywords

antenna radiation patterns; current distribution; planar inverted-F antennas; closely-packed antenna elements; defected ground structure; dumb-bell-like pattern etching; mutual coupling reduction; parallel individual planar inverted F antennas; radiation pattern; surface current distribution; Bandwidth; Current distribution; Dielectric losses; Etching; Geometry; MIMO; Mutual coupling; Patch antennas; Resonant frequency; Surface waves; DGS; PIFAs; mutual coupling;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2009 3rd IEEE International Symposium on

Conference_Location

Beijing

Print_ISBN

978-1-4244-4076-4

Type

conf

DOI

10.1109/MAPE.2009.5355659

Filename

5355659