Electromagnetically Coupled High Efficiency Orthogonal MIMO Antenna for 5G and Wireless Applications

2021 ◽  
Author(s):  
S. J. Vignesh ◽  
B. H. Ahmad ◽  
D. Yadav ◽  
H. Nornikman
Keyword(s):  
High Efficiency ◽  
Mimo Antenna ◽  
Wireless Applications

scholarly journals Two element folded meander line MIMO antenna for Wireless applications

2019 ◽  
Vol 23 (1) ◽  
pp. 11
Author(s):  
Sanjay Chouhan ◽  
Leeladhar Malviya
Keyword(s):  
Indoor Environment ◽  
Return Loss ◽  
Radiation Effect ◽  
High Efficiency ◽  
Mimo Antenna ◽  
Compact Antenna ◽  
Wireless Applications ◽  
Low Profile ◽  
Compact Size ◽  
Meander Line

Compact antenna, appropriate gain, high efficiency, wide bandwidth, minimum envelope correlation coefficient (ECC), large total active reflection coefficient (TARC) bandwidth, and low specific absorption rate (SAR) are certain conditions set on the present/future generations of wireless communication antennas with the lowest cost of implementation. A compact low profile folded MIMO antenna has been designed using CST tool to cover application at 5.2 GHz. The reported folded MIMO antenna has bandwidth of 600 MHz (5.0-5.6 GHz) and has fractional bandwidth of 11.32 % along with the compact size of 37.5 × 17.0 mm2 . The reported MIMO antenna has ECC of < 10-2. The proposed folded MIMO antenna resonates at 5.2 GHz and has return loss of -44.0 dB. The inter-port isolation in antenna ports is > 11.50 dB in the defined frequency band. The response of TARC shows > 580 MHz of bandwidth with pair of excitation angles at antenna ports. The gain of antenna is > 3.0 dBi in the operating band. The reported radiating geometry makes the design very compact. To check the radiation effect on human body in different positions, the SAR is evaluated for indoor environment.

scholarly journals Minimization of Mutual Coupling Using Neutralization Line Technique for 2.4 GHz Wireless Applications

2015 ◽  
Vol 6 (3) ◽  
pp. 1-15 ◽  
Author(s):  
Wan Noor Najwa Wan Marzudi ◽  
Zuhairiah Zainal Abidin ◽  
Siti Zarina Mohd Muji ◽  
Yue Ma ◽  
Raed A. Abd-Alhameed
Keyword(s):  
Reflection Coefficient ◽  
Mutual Coupling ◽  
Ground Plane ◽  
Multiple Input Multiple Output ◽  
Impedance Bandwidth ◽  
Mimo Antenna ◽  
Mimo Antennas ◽  
Wireless Applications ◽  
Input Multiple Output ◽  
Neutralization Line

This paper presented a planar printed multiple-input-multiple-output (MIMO) antenna with a dimension of 100 x 45 mm2. It composed of two crescent shaped radiators placed symmetrically with respect to the ground plane. Neutralization line applied to suppress mutual coupling. The proposed antenna examined both theoretically and experimentally, which achieves an impedance bandwidth of 18.67% (over 2.04-2.46 GHz) with a reflection coefficient < -10 dB and mutual coupling minimization of < -20 dB. An evaluation of MIMO antennas is presented, with analysis of correlation coefficient, total active reflection coefficient (TARC), capacity loss and channel capacity. These characteristics indicate that the proposed antenna suitable for some wireless applications.

3X3 Wideband and High Isolation MIMO Antenna for Wireless Applications

2020 ◽  
Author(s):  
Nithya Dorairajan ◽  
Chitra M. Perumal ◽  
Swetha Vedhagiri ◽  
S.B. Parvin Banu ◽  
Sivapriya Veluchamy ◽  
...  
Keyword(s):  
Mimo Antenna ◽  
Wireless Applications ◽  
High Isolation

scholarly journals Nature Inspired MIMO Antenna System for Future mmWave Technologies

Micromachines ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1083
Author(s):  
Saifur Rahman ◽  
Xin-cheng Ren ◽  
Ahsan Altaf ◽  
Muhammad Irfan ◽  
Mujeeb Abdullah ◽  
...  
Keyword(s):  
Communication Systems ◽  
High Efficiency ◽  
Multiple Input Multiple Output ◽  
Antenna System ◽  
Potential Candidate ◽  
Mimo Antenna ◽  
Communication Devices ◽  
Input Multiple Output ◽  
Measured Efficiency ◽  
5G Communication

In this work, a new Multiple Input Multiple Output (MIMO) antenna system with a novel shape inspired by nature is proposed for Fifth-Generation (5G) communication systems. The antenna is designed on a Rogers 5880. The dielectric constant of the substrate is 2.2, and the loss tangent is assumed to be 0.0009. The gain of the system for the desired bandwidth is nearly 8 dB. The simulated and the measured efficiency of the proposed system is 95% and 80%, respectively. To demonstrate the capability of the system as a potential candidate for future 5G communication devices, MIMO key performance parameters such as the Envelope Correlation Coefficient (ECC) and Diversity Gain (DG) are computed. It is found that the proposed system has low ECC, constant DG, and high efficiency for the desired bandwidth.

scholarly journals A High-Efficiency Compact Planar Antenna for ISM Wireless Systems

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Tao Zhou ◽  
Yazi Cao ◽  
Zhiqun Cheng ◽  
Martine Le Berre ◽  
Francis Calmon
Keyword(s):  
High Efficiency ◽  
Low Cost ◽  
Impedance Matching ◽  
Wireless Systems ◽  
Planar Antenna ◽  
Wireless Applications ◽  
Electrically Small Antenna ◽  
Lumped Elements ◽  
Small Antenna ◽  
Compact Planar

A novel high-efficiency compact planar antenna at 433 MHz with minimized size and low-cost and easy to integrate into the ISM wireless applications is designed, fabricated, and measured. Capacitive strips that are formed by cutting inter-digital slots and the meander lines on both sides are introduced to greatly reduce the antenna size yet maintain the high efficiency. The proposed antenna has a simple planar structure and occupies a small area (i.e., 45 × 30 mm2). This novel electrically small antenna can be operated well without any lumped elements for impedance matching. Details of the antenna design and experimental results are presented and discussed.

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