Stacked reconfigurable circular patch antenna for adaptive MIMO systems

Author

Piazza, D. ; Capacchione, M. ; Kountouriotis, J. ; D´Amico, M. ; Dandekar, Kapil R.

Author_Institution

Dipt. di Elettron. e Inf. (DEI), Politec. di Milano, Milan, Italy

fYear

2009

fDate

14-18 Sept. 2009

Firstpage

636

Lastpage

639

Abstract

In this paper we present a novel design of a reconfigurable circular patch antenna (RCPA) for multiple input multiple output (MIMO) communication systems. This antenna allows for high pattern diversity and exhibits good radiation efficiency in all of its configurations. The compact array is capable of dynamically changing the shape of its radiation pattern by selecting a pair of feed points connected to two stacked circular disks. Different electromagnetic modes are excited in the antenna structure to achieve pattern reconfigurability. The performance achievable with this antenna in MIMO systems is determined through channel measurements collected in an indoor environment. Results show a capacity improvement of 11% when using the proposed array at one end of a 2 times 2 MIMO system with respect to a system that employs non reconfigurable antennas.

Keywords

MIMO communication; antenna feeds; antenna radiation patterns; diversity reception; microstrip antenna arrays; adaptive MIMO system; antenna array; antenna feeds; antenna radiation pattern; diversity reception; electromagnetic modes; multiple input multiple output system; reconfigurable circular patch antenna; Adaptive systems; Antenna measurements; Antenna radiation patterns; Electromagnetic measurements; Electromagnetic radiation; Feeds; Indoor environments; MIMO; Patch antennas; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics in Advanced Applications, 2009. ICEAA '09. International Conference on

Conference_Location

Torino

Print_ISBN

978-1-4244-3385-8

Electronic_ISBN

978-1-4244-3386-5

Type

conf

DOI

10.1109/ICEAA.2009.5297270

Filename

5297270