A Compact 8-Element 3D UWB Diversity Antenna System for Off Device Installation

IEEE Access

Muhammad Farhan Shafique¹  Noman Saleem²  Muhammad Bilal³  Zahid Rauf³  Raja Asif Wagan³  Sania Shakir³  Syed Muzahir Abbas⁴  Rashid Saleem⁵ 

[1] Center for Advanced Studies in Telecommunication, COMSATS University Islamabad, Islamabad, Pakistan;Chief Minister Delivery Unit, Chief Minister Secretariat, Quetta, Pakistan;Department of Telecommunication Engineering, Balochistan University of IT, Engineering and Management Sciences, Quetta, Pakistan;Faculty of Science and Engineering, School of Engineering, Macquarie University, Sydney, NSW, Australia;Telecommunication Engineering Department, University of Engineering and Technology~(UET) Taxila, Taxila, Pakistan;

关键词: Frequency selective surfaces (FSS);    multiple-input-multiple-output (MIMO);    mutual coupling;    ultra-wideband (UWB) antennas;   

DOI  :  10.1109/ACCESS.2021.3065988

来源: DOAJ

【 摘 要 】

In this paper, an 8-element Ultra-wideband Multiple-Input-Multiple-Output (UWB-MIMO) antenna system is proposed. This MIMO system has novel miniaturized antenna elements that are evolved from a conventional monopole patch antenna. These antennas incorporate various impedance matching features including but are not limited to smoothly tapered fed lines, split and truncated ground configuration, semi-circles arches, and inverted p-shaped slots. The antenna pairs are arranged in the cuboidal form to achieve a 3D-arrangement whereas customized decoupling structures achieve the desired isolation levels for three configurations including side-by-side, orthogonal, and across. These three distinct isolation mechanism offers isolation ranges from 20–30 dB for the proposed configurations. More importantly, a diamond eye structure (DES) as a parasitic element is also designed and optimized to improve the impedance matching owing to the lossy nature of isolation structures. The proposed antenna system has compact dimensions of $26.9\times 26\times26.9$ mm³ and its investigated MIMO performance proves its suitability for communication devices operating in the whole UWB spectrum of 3.1–10.6 GHz.

【 授权许可】

Unknown