University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Interaction Between Closely Packed Array Antenna Elements Using Metasurface for Applications Such as MIMO Systems and Synthetic Aperture Radars

Alibakhshikenari, Mohammad, Virdee, Bal S., Shukla, Panchamkumar, See, Chan H., Abd-Alhameed, Raed, Khalily, Mohsen, Falcone, Francisco and Limiti, Ernesto (2018) Interaction Between Closely Packed Array Antenna Elements Using Metasurface for Applications Such as MIMO Systems and Synthetic Aperture Radars Radio Science, 53 (11). pp. 1368-1381.

[img] Text
Interaction Between Closely Packed Array Antenna Elements.docx - Accepted version Manuscript
Restricted to Repository staff only

Download (5MB)
[img]
Preview
Text
Interaction Between Closely Packed Array Antenna Elements.pdf - Version of Record

Download (3MB) | Preview

Abstract

The paper presents a technique to enhance the isolation between adjacent radiating elements which is common in densely packed antenna arrays. Such antennas provide frequency beam-scanning capability needed in Multiple-Input Multiple-Output (MIMO) systems and Synthetic Aperture Radars (SARs). The method proposed here uses a metamaterial decoupling slab (MTM-DS), which is located between radiating elements, to suppress mutual-coupling between the elements that would otherwise degrade the antenna efficiency and performance in both the transmit and receive mode. The proposed MTM-DS consists of mirror imaged E-shaped slits engraved on a microstrip patch with inductive stub. Measured results confirm over 9–11 GHz with no MTM-DS the average isolation (S12) is -27 dB; however, with MTM-DS the average isolation improves to -38 dB. With this technique the separation between the radiating element can be reduced to 0.66λo, where λ0 is free space wavelength at 10 GHz. In addition, with this technique there is 15% improvement in operating bandwidth. At frequencies of high impedance match of 9.95 GHz and 10.63 GHz the gain is 4.52 dBi and 5.40 dBi, respectively. Furthermore, the technique eliminates poor front-to-back ratio encountered in other decoupling methods. MTM-DS is also relatively simple to implement. Assuming adequate space is available between adjacent radiators the MTM-DS can be fixed retrospectively on existing antenna arrays, which makes the proposed method versatile.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Alibakhshikenari, Mohammad
Virdee, Bal S.
Shukla, Panchamkumar
See, Chan H.
Abd-Alhameed, Raed
Khalily, Mohsenm.khalily@surrey.ac.uk
Falcone, Francisco
Limiti, Ernesto
Date : 18 October 2018
Funders : Engineering and Physical Sciences Research Council (EPSRC)
DOI : 10.1029/2018RS006533
Copyright Disclaimer : An edited version of this paper was published by AGU. Copyright (2018) American Geophysical Union. Alibakhshikenari et al. (2018), 'Interaction Between Closely Packed Array Antenna Elements Using Metasurface for Applications Such as MIMO Systems and Synthetic Aperture Radars', Radio Science, Volume number, Citation number, DOI - 10.1029/2018RS006533 . To view the published open abstract, go to http://dx.doi.org and enter the DOI.
Uncontrolled Keywords : Metamaterial decoupling slab (MTM-DS); Antenna arrays; Frequency beam-scanning; Synthetic aperture radars (SAR); Multiple-input multiple-output (MIMO) system
Depositing User : Clive Harris
Date Deposited : 23 Oct 2018 08:58
Last Modified : 04 Sep 2019 08:56
URI: http://epubs.surrey.ac.uk/id/eprint/849751

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800