Dual-polarized 8-port sub 6 GHz 5G MIMO diamond-ring slot antenna for smart phone and portable wireless applications

被引:5
作者
Fawad, Yasir [1 ]
Ullah, Sadiq [2 ]
Irfan, Muhammad [3 ]
Ullah, Rizwan [2 ]
Rahman, Saifur [3 ]
Muhammad, Fazal [4 ]
Almawgani, Abdulkarem H. M. [3 ]
Mursal, Salim Nasar Faraj [3 ]
机构
[1] Univ Engn & Technol Peshawar, Telecommun Engn Dept, Mardan, Pakistan
[2] Univ Engn & Technol Mardan, Telecommun Engn Dept, Mardan, Pakistan
[3] Najran Univ, Coll Engn, Elect Engn Dept, Najran, Saudi Arabia
[4] Univ Engn & Technol Mardan, Elect Engn Dept, Mardan, Pakistan
来源
PLOS ONE | 2023年 / 18卷 / 11期
关键词
ARRAY; METAMATERIAL; SYSTEM;
D O I
10.1371/journal.pone.0288793
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
This manuscript presents high performance dual polarized eight-element multiple input multiple output (MIMO) fifth generation (5G) smartphone antenna. The design consists of four dual-polarized microstrip diamond-ring slot antennas, positioned at corners of printed circuit board (PCB). Cheap Fr-4 dielectric with permittivity 4.3 and thickness of 1.6mm is used as substrate with overall dimension of 150 x 75 x 1.6 mm(3). In mobile system due to limited space mutual coupling between nearby antenna elements is an issue that distort MIMO antenna performance. Defected ground structure is used to control coupling. The defected ground structure has advantages like ease of fabrication, compact size and high efficiency as compare to other techniques. Less than 30dB coupling is achieved for adjacent elements. The -10 dB impedance bandwidth of 700 MHz is achieved for all radiating elements ranging from 3.3 GHz to 4.1 GHz. The value is about 900MHz for -6dB. The proposed antenna offers good results in terms of fundamental antenna parameters like reflection coefficient, transmission coefficient, maximum gain, total efficiency. The antenna achieved average gain more than 3.8dBi and average radiation efficiency more than 80% for single dual polarized element. The antenna provides sufficient radiation coverage in all sides. The MIMO antenna characteristics like diversity gain (DG), envelope correlation coefficient (ECC), total active reflection coefficient (TARC) and channel capacity are calculated and found according to standards. Furthermore, effect of user on antenna performance in data-mode and talk-mode are studied. Proposed design is fabricated and tested in real time. The measured results shows that proposed design can be used in future smartphones applications. The design is compared with some of the existing work and found to be the best one in many parameters and can be used for commercial use.
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页数:23
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