Robust antenna array processor in the presence of steering angle mismatch and mutual coupling effect

2015 ◽  
Author(s):  
M. F. Ali ◽  
M. S. Hossain ◽  
M. M. Rashid
Keyword(s):  
Antenna Array ◽  
Mutual Coupling ◽  
Coupling Effect ◽  
Array Processor ◽  
Steering Angle

Optimal Antenna Matching and Mutual Coupling Effect of Antenna Array in MIMO Receiver

2007 ◽  
Vol E90-B (4) ◽  
pp. 960-967 ◽  
Author(s):  
H. IURA ◽  
H. YAMADA ◽  
Y. OGAWA ◽  
Y. YAMAGUCHI
Keyword(s):  
Antenna Array ◽  
Mutual Coupling ◽  
Coupling Effect

scholarly journals MUTUAL COUPLING EFFECT ON MIMO ANTENNA

2014 ◽  
pp. 247-250
Author(s):  
BHUSHAN R. KALAMKAR ◽  
SACHIN S. KHADE ◽  
B.L. BADJATE
Keyword(s):  
Antenna Array ◽  
Mutual Coupling ◽  
Mimo Systems ◽  
Coupling Effect ◽  
Ground Plane ◽  
Multiple Input Multiple Output ◽  
Correlation Coefficients ◽  
Mimo Antenna ◽  
Input Multiple Output ◽  
Plate Antenna

To reduce mutual coupling effect on MIMO Antenna this paper presents the analysis of bent ground plane antennas for multiple-input-multiple-output (MIMO). First, the three plate antenna array patterns of the envelope correlation coefficients are proposed to evaluate the diversity performance of antennas in MIMO systems. Following this, a compact three-element suspended plate antenna array with a bent ground plane is presented. The diversity performance of the design is experimentally and numerically analysed.

An optimal circular antenna array design considering the mutual coupling employing ant lion optimization

2020 ◽  
pp. 1-9 ◽  
Author(s):  
Avishek Das ◽  
Durbadal Mandal ◽  
Rajib Kar
Keyword(s):  
Antenna Array ◽  
Radiation Pattern ◽  
Mutual Coupling ◽  
Coupling Effect ◽  
Optimization Technique ◽  
Beam Width ◽  
Side Lobe Level ◽  
Ant Lion Optimization ◽  
Ant Lion ◽  
Circular Antenna Array

Abstract This paper presents an efficient approach for the design of a non-uniform single ring circular antenna array (CAA) for the synthesis of the optimal far-field radiation pattern. A recently proposed meta-heuristic-based optimization technique known as ant lion optimization (ALO) is applied in this paper to determine the optimum set of current amplitude excitation weights and the inter-element distance among the array elements to reduce the side lobe level (SLL) and 3-dB beam width considering the mutual coupling effect. The results achieved by employing the ALO algorithm are compared with the uniform radiation pattern and with those of the recently reported literature containing equal sets of elements to prove the superiority of ALO algorithm. Three different design examples of 8, 10, and 12 elements CAA are presented, and their performances are compared to illustrate the capability of the ALO algorithm-based approach over those of the recently reported literature.

scholarly journals Mutual Coupling Effect of Microstrip Antenna Array

2012 ◽  
Vol 29 ◽  
pp. 1984-1988
Author(s):  
Rao Jia-ren ◽  
Zong Peng ◽  
Darwin R. Becerra
Keyword(s):  
Antenna Array ◽  
Microstrip Antenna ◽  
Mutual Coupling ◽  
Coupling Effect ◽  
Microstrip Antenna Array

scholarly journals A Compact 5G Decoupling MIMO Antenna Based on Split-Ring Resonators

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Ziyu Xu ◽  
Qisheng Zhang ◽  
Linyan Guo
Keyword(s):  
Antenna Array ◽  
Mutual Coupling ◽  
Coupling Effect ◽  
Antenna System ◽  
Ring Resonators ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Mimo Antenna ◽  
Compact Size ◽  
5 Ghz

A compact planar multiple-input multiple-output (MIMO) antenna array for 5G band is proposed in this paper. To improve the isolation of compact microstrip antenna array, this paper mainly presents an electromagnetic resonant ring method for MIMO antenna array. The proposed antenna can cover both the 3.3-3.6 GHz and 4.8-5 GHz bands proposed for the 5G band. The antenna proposed in this paper consists of two symmetrical meandered monopole radiators, grid structures, and a Y-shape element. Two different sizes of split-ring resonators (SRRs) are used to suppress the interference of the coupled signal to the antenna system; thereby it can reduce the mutual coupling effect. The experimental results show that the mutual coupling between the two elements is below -25 dB in both of the bands after adding the SRRs. And this antenna is only 23×19 mm2. Its compact size and structure can be used as a mobile terminal antenna.

scholarly journals PENGARUH MUTUAL COUPLING PADA BEAMFORMING ANTENA ARRAY

2020 ◽  
Vol 5 (1) ◽  
pp. 6
Author(s):  
Naufal Widya Gaspura ◽  
Dharu Arseno ◽  
Alloysius Adya Pramudita
Keyword(s):  
Antenna Array ◽  
Radiation Pattern ◽  
Mutual Coupling ◽  
Coupling Effect ◽  
Beam Direction ◽  
Antenna Radiation ◽  
Antenna Radiation Pattern ◽  
Grating Lobe

In the antenna array there is a mutual coupling effect. Mutual coupling causes a decrease in the characteristics of the antenna parameters. In this study, an analysis of the effect of mutual coupling on beamforming results was carried out. In this study, it was concluded that the effect of mutual coupling depends on the distance between the antenna elements. In the simulation for the beam pointing to 60 degrees, at a distance of lambda the resulting beam is shifted by 70%. Distance of 12 lambda, beam shifted 25% to 45 degrees. At 3 4 lambda distance, the beam is close to the desired result direction, 64 degrees to be precise, at the lambda distance there is a grating lobe effect. In the end, it was found that mutual coupling affects the beam direction which causes the antenna radiation pattern to change.

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