A Pattern Reconfigurable Chassis-Mode MIMO Antenna

Author

Kumar Kishor, Krishna ; Hum, S.V.

Author_Institution

Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada

Volume

62

Issue

6

fYear

2014

fDate

Jun-14

Firstpage

3290

Lastpage

3298

Abstract

Reconfigurable multiple-input multiple-output (MIMO) antennas have the potential to improve the performance of a MIMO antenna system operating in a dynamic environment. This paper presents a reconfigurable MIMO antenna that utilizes two tunable parasitic elements that manipulate the characteristic modes of the structure to provide pattern diversity. Simulation studies and calculation of envelope correlation coefficients from this two-port antenna confirm that the radiation patterns are orthogonal to each other in each of the two states of the antenna, as well as between the two states. Measured two-port S-parameters of a prototype employing switched PIN diode loading correspond well with simulations. Radiation pattern measurements in the two principal planes indicate overall correlation with simulations.

Keywords

MIMO communication; antenna arrays; antenna radiation patterns; p-i-n diodes; chassis mode MIMO antenna; envelope correlation coefficient; multiple input multiple output antenna; pattern diversity; pattern reconfigurable MIMO antenna; switched PIN diode; tunable parasitic elements; two-port antenna; Antenna radiation patterns; Correlation; Eigenvalues and eigenfunctions; Loaded antennas; MIMO; Ports (Computers); Characteristic modes; MIMO systems; chassis-mode antennas; handset antennas; reconfigurable antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2014.2313634

Filename

6778018