Novel Metamaterial Compact Planar MIMO Antenna Systems with Improved Isolation for WLAN Application

In this paper, two element multiple input–multiple output (MIMO) meander line antenna systems with improved isolation performance and compact size are proposed and fabricated in WLAN frequency band. To increase isolation among antenna elements, a novel metamaterial spiral S-shaped resonator is embed...

Full description

Saved in:
Bibliographic Details
Published in:Wireless personal communications 2018-09, Vol.102 (1), p.399-410
Main Authors: Torabi, Yalda, Omidi, Reza
Format: Article
Language:English
Subjects:
Antenna arrays
Antennas
Communications Engineering
Communications systems
Computer Communication Networks
Correlation coefficients
Engineering
Local area networks
Metamaterials
MIMO communication
Mobile communication systems
Networks
Reflectance
Resonators
Signal,Image and Speech Processing
Wireless networks
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, two element multiple input–multiple output (MIMO) meander line antenna systems with improved isolation performance and compact size are proposed and fabricated in WLAN frequency band. To increase isolation among antenna elements, a novel metamaterial spiral S-shaped resonator is embedded between two radiating elements. The proposed resonator has planar configuration and miniaturized size and is capable of blocking electromagnetic propagation between antenna elements by exhibiting negative effective permeability in the desired frequency band. To illustrate and evaluate the design process, two design samples are fabricated and tested in WLAN frequency band and the agreement among measurement and simulation results approves the design method. In the frequency range of 2.38–2.48 GHz, some MIMO communication system requirements like total active reflection coefficient, envelope correlation coefficient and capacity loss are tested on design samples which show satisfactory results, so this method can be employed in designing array antennas for small mobile communication systems. The designed MIMO antenna systems separated by 13.8 mm (less than λ/9), has better than − 40 dB isolation coefficient and near zero correlation coefficient and capacity loss at the operating frequency (2.4 GHz).
ISSN:0929-6212
1572-834X
DOI:10.1007/s11277-018-5848-5