Paper Info
Title
Multi-Band MIMO Antenna Design with User-Impact Investigation for 4G and 5G Mobile Terminals.
Abstract
In this study, we propose a design of a multi-band slot antenna array applicable for fourth-generation (4G) and fifth-generation (5G) smartphones. The design is composed of double-element square-ring slot radiators fed by microstrip-line structures for easy integration with radio frequency (RF)/microwave circuitry. The slot radiators are located on the corners of the smartphone printed circuit board (PCB) with an overall dimension of 75 x 150 mm(2). The proposed multiple-input multiple-output (MIMO) antenna is designed to meet the requirements of 4G and 5G mobile terminals with essential bandwidth for higher data rate applications. For -10 dB impedance bandwidth, each single-element of the proposed MIMO design can cover the frequency ranges of 2.5-2.7 GHz (long-term evolution (LTE) 2600), 3.45-3.8 GHz (LTE bands 42/43), and 5.00-5.45 GHz (LTE band 46). However, for -6 dB impedance bandwidth, the radiation elements cover the frequency ranges of 2.45-2.82 GHz, 3.35-4.00 GHz, and 4.93-5.73 GHz. By employing the microstrip feed lines at the four different sides of smartphone PCB, the isolation of the radiators has been enhanced and shows better than 17 dB isolation levels over all operational bands. The MIMO antenna is implemented on an FR-4 dielectric and provides good properties including S-parameters, efficiency, and radiation pattern coverage. The performance of the antenna is validated by measurements of the prototype. The simulation results for user-hand/user-head impacts and specific absorption rate (SAR) levels of the antenna are discussed, and good results are achieved. In addition, the antenna elements have the potential to be used as 8-element/dual-polarized resonators.
Year
DOI
Venue
2019
10.3390/s19030456
SENSORS
Keywords
Field
DocType
4G,5G,double-element slot antenna,LTE,MIMO system,mobile terminal,user-impact
Microwave,Specific absorption rate,Radiation pattern,MIMO,Slot antenna,Printed circuit board,Radio frequency,Electronic engineering,Engineering,Microstrip
Journal
Volume
Issue
ISSN
19
3.0
1424-8220
Citations 
PageRank 
References 
0
0.34
2
Authors
6
Name
Order
Citations
PageRank
Naser Ojaroudi Parchin132.12
Haleh Jahanbakhsh Basherlou200.68
Yasir I A Al-Yasir311.37
Atta Ullah421.18
Raed A. Abd-Alhameed57918.29
James M. Noras63411.79