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A New CPW-Fed Diversity Antenna for MIMO 5G Smartphones

Ojaroudi Parchin, Naser; Jahanbakhsh Basherlou, Haleh; Al-Yasir, Yasir I. A.; M. Abdulkhaleq, Ahmed; Patwary, Mohammad; A. Abd-Alhameed, Raed

Authors

Haleh Jahanbakhsh Basherlou

Yasir I. A. Al-Yasir

Ahmed M. Abdulkhaleq

Mohammad Patwary

Raed A. Abd-Alhameed



Abstract

In this study, a new coplanar waveguide (CPW)-fed diversity antenna design is introduced for multiple-input–multiple-output (MIMO) smartphone applications. The diversity antenna is composed of a double-fed CPW-fed antenna with a pair of modified T-ring radiators. The antenna is designed to cover the frequency spectrum of commercial sub-6 GHz 5G communication (3.4–3.8 and 3.8–4.2 GHz). It also provides high isolation, better than −16 dB, without an additional decoupling structure. It offers good potential to be deployed in future smartphones. Therefore, the characteristics and performance of an 8-port 5G smartphone antenna were investigated using four pairs of the proposed diversity antennas. Due to the compact size and also the placement of the elements, the presented CPW-fed smartphone antenna array design occupies a very small part of the smartphone board. Its operation band spans from 3.4 to 4.4 GHz. The simulated results agree well with measured results, and the performance of the smartphone antenna design in the presence of a user is given in this paper as well. The proposed MIMO design provides not only sufficient radiation coverage supporting different sides of the mainboard but also polarization diversity.

Journal Article Type Article
Acceptance Date Jan 28, 2020
Online Publication Date Feb 4, 2020
Publication Date 2020
Deposit Date Feb 21, 2022
Publicly Available Date Feb 21, 2022
Journal Electronics
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 9
Issue 2
Article Number 261
DOI https://doi.org/10.3390/electronics9020261
Keywords 5G technology; CPW-fed antenna; diversity antenna; future smartphones; MIMO systems
Public URL http://researchrepository.napier.ac.uk/Output/2840173

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