Compact Eight-Element MIMO Antenna with Reduced Mutual Coupling and Beam-Scanning Performance
Abstract
:1. Introduction
2. Design and Working Principle
2.1. Geometry of Antenna
2.2. Working Principle
3. Mutual Coupling Effects
3.1. Current Distribution
3.2. S-Parameter
3.3. Envelope Correlation Coefficient and Diversity Gain
3.4. Efficiency and Peak Gain
3.5. Radiation Patterns
4. Beamscanning Performance
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Parameters | Dimension (mm) | Parameters | Dimensions (mm) |
---|---|---|---|
wg | 43.7 | Wm | 1.3 |
lg | 118 | Lm | 1.2 |
Ws | 5.3 | L1 | 1.2 |
Le | 3.62 | W1 | 0.7 |
We | 1.82 | g | 0.18 |
Ls | 0.7 |
Pointing Angle () | Phase Shift () | Pointing Angle () | Phase Shift () |
---|---|---|---|
0 | 0 | 40 | 115.70 |
10 | 31.25 | 50 | 137.88 |
20 | 61.56 | 60 | 155.88 |
30 | 90 | 70 | 169.14 |
Reference | Technique Used | Number of Elements | Center Frequency (GHz) | Realize Gain | Spacing between Elements | Isolation Improved | Maximum Scanning Angle |
---|---|---|---|---|---|---|---|
[16] | DGS | 2 | 9.2 | NA | 0.25 | 16 | NA |
[17] | SRR | 2 | 5 | NA | 0.25 | 10 | NA |
[22] | Waveguide Metamaterial | 2 | 3.5 | NA | 0.125 | 6 | NA |
[23] | Slotted Meander-Line | 2 | 4.8 | NA | 0.38 | 16 | NA |
[6] | SIW | 4 | 33 | 10.3 | NA | NA | 76° |
[38] | Notches in Ground Plane | 8 | 28 | 14 | 0.5 | 15 | 60° |
[39] | Multilevel Antenna | 4 | 3.5 | 9 | 0.32 | 15 | 42° |
Proposed Design | Slots in the Patches | 8 | 29 | 11.7 | 0.5 | 14.7 | 70° |
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Ahmad, A.; Choi, D.-y. Compact Eight-Element MIMO Antenna with Reduced Mutual Coupling and Beam-Scanning Performance. Sensors 2022, 22, 8933. https://doi.org/10.3390/s22228933
Ahmad A, Choi D-y. Compact Eight-Element MIMO Antenna with Reduced Mutual Coupling and Beam-Scanning Performance. Sensors. 2022; 22(22):8933. https://doi.org/10.3390/s22228933
Chicago/Turabian StyleAhmad, Ashfaq, and Dong-you Choi. 2022. "Compact Eight-Element MIMO Antenna with Reduced Mutual Coupling and Beam-Scanning Performance" Sensors 22, no. 22: 8933. https://doi.org/10.3390/s22228933