Multi-objective optimization of MIMO antennas for dual-band user devices

Author

Derneryd, Anders ; Stjernman, Anders ; Strandberg, Håkan ; Wästberg, Bo

Author_Institution

Ericsson Reserach, Ericsson AB, Gothenburg, Sweden

fYear

2011

fDate

3-8 July 2011

Firstpage

2449

Lastpage

2452

Abstract

This paper presents the use of multi-objective optimization when designing a dual-antenna system for MIMO application. As a study case, a user device is selected operating within two separate frequency bands, namely 750-800 MHz and 2.5-2.7 GHz. The MIMO performance of such an antenna system depends strongly on the antenna efficiency in a noise-limited environment but also on the correlation between the antenna branch signals. The antennas also share space with other components in a user device, which puts restrictions on the occupied area. This leads to conflicting requirements that are handled with a multi-objective optimization procedure.

Keywords

MIMO communication; UHF antennas; microwave antenna arrays; multifrequency antennas; optimisation; MIMO antenna; antenna branch signal; dual band user device; dual-antenna system; frequency 2.5 GHz to 2.7 GHz; frequency 750 MHz to 800 MHz; multiobjective optimization; Antennas; Correlation; MIMO; Optimization; Scattering parameters; Solid modeling; MIMO; Pareto front; antenna; correlation; efficiency; multi-criteria decision making; multi-objective optimization;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on

Conference_Location

Spokane, WA

ISSN

1522-3965

Print_ISBN

978-1-4244-9562-7

Type

conf

DOI

10.1109/APS.2011.5997018

Filename

5997018