Shape Optimization Method for Curved-groove DGS of MIMO Antenna-array Based on the Trigonometric Function Expansion

2021 ◽  
pp. 153904
Author(s):  
Yi Tang ◽  
Shuwen Deng ◽  
Renjing Gao ◽  
Shutian Liu
Keyword(s):  
Shape Optimization ◽  
Antenna Array ◽  
Optimization Method ◽  
Trigonometric Function ◽  
Mimo Antenna ◽  
Function Expansion

scholarly journals A Graphene-Assembled Film Based MIMO Antenna Array with High Isolation for 5G Wireless Communication

2021 ◽  
Vol 11 (5) ◽  
pp. 2382
Author(s):  
Rongguo Song ◽  
Xiaoxiao Chen ◽  
Shaoqiu Jiang ◽  
Zelong Hu ◽  
Tianye Liu ◽  
...  
Keyword(s):  
Antenna Array ◽  
Antenna Arrays ◽  
Multiple Input Multiple Output ◽  
Frequency Selective Surface ◽  
Antenna System ◽  
Antenna Element ◽  
Mimo Antenna ◽  
High Isolation ◽  
Input Multiple Output ◽  
Alternative Material

With the development of 5G, Internet of Things, and smart home technologies, miniaturized and compact multi-antenna systems and multiple-input multiple-output (MIMO) antenna arrays have attracted increasing attention. Reducing the coupling between antenna elements is essential to improving the performance of such MIMO antenna system. In this work, we proposed a graphene-assembled, as an alternative material rather than metal, film-based MIMO antenna array with high isolation for 5G application. The isolation of the antenna element is improved by a graphene assembly film (GAF) frequency selective surface and isolation strip. It is shown that the GAF antenna element operated at 3.5 GHz has the realized gain of 2.87 dBi. The addition of the decoupling structure improves the isolation of the MIMO antenna array to more than 10 dB and corrects the antenna radiation pattern and operating frequency. The isolation between antenna elements with an interval of 0.4λ is above 25 dB. All experimental results show that the GAF antenna and decoupling structure are efficient devices for 5G mobile communication.

Circularly polarized MIMO antenna array for point-to-point communication

2014 ◽  
Vol 57 (1) ◽  
pp. 242-247 ◽  
Author(s):  
M. K. A. Nayan ◽  
M. F. Jamlos ◽  
M. A. Jamlos
Keyword(s):  
Antenna Array ◽  
Circularly Polarized ◽  
Mimo Antenna ◽  
Point To Point

A new jig-shape optimization method for the high aspect ratio wing

2018 ◽  
Vol 91 (1) ◽  
pp. 124-133
Author(s):  
Zhe Yuan ◽  
Shihui Huo ◽  
Jianting Ren
Keyword(s):  
Aspect Ratio ◽  
Shape Optimization ◽  
High Aspect Ratio ◽  
Optimization Design ◽  
Design Method ◽  
Aircraft Design ◽  
Optimization Method ◽  
Attack Angle ◽  
Structural Deformation ◽  
Content Type

Purpose Computational efficiency is always the major concern in aircraft design. The purpose of this research is to investigate an efficient jig-shape optimization design method. A new jig-shape optimization method is presented in the current study and its application on the high aspect ratio wing is discussed. Design/methodology/approach First, the effects of bending and torsion on aerodynamic distribution were discussed. The effect of bending deformation was equivalent to the change of attack angle through a new equivalent method. The equivalent attack angle showed a linear dependence on the quadratic function of bending. Then, a new jig-shape optimization method taking integrated structural deformation into account was proposed. The method was realized by four substeps: object decomposition, optimization design, inversion and evaluation. Findings After the new jig-shape optimization design, both aerodynamic distribution and structural configuration have satisfactory results. Meanwhile, the method takes both bending and torsion deformation into account. Practical implications The new jig-shape optimization method can be well used for the high aspect ratio wing. Originality/value The new method is an innovation based on the traditional single parameter design method. It is suitable for engineering application.

scholarly journals DESIGN OF A DUAL-BAND 12-ELEMENT MIMO ANTENNA ARRAY FOR 5G MOBILE APPLICATIONS

2021 ◽  
Vol 95 ◽  
pp. 73-81
Author(s):  
Vishakha Thakur ◽  
Naveen Jaglan ◽  
Samir Dev Gupta
Keyword(s):  
Antenna Array ◽  
Mobile Applications ◽  
Dual Band ◽  
Mimo Antenna
Sign in / Sign up

Export Citation Format

Share Document