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Optically Remote Control of Miniaturized 3D Reconfigurable CRLH Printed Self-Powered MIMO Antenna Array for 5G
Hayder H Al-Khaylani1,2, Taha A Elwi2,3, Abdullahi A Ibrahim1
1Electrical and Computer Engineering Department, Faculty of Engineering, Altinbas University, Istanbul 34217, Turkey.
Micromachines
|December 23, 2022
Summary
This study presents a novel 3D reconfigurable MIMO antenna array integrated with solar cells for 5G self-power applications. The design achieves excellent impedance matching and beamforming capabilities for enhanced wireless communication.
Area of Science:
- Wireless Communication Engineering
- Antenna Design
- Renewable Energy Integration
Background:
- 5G networks require efficient self-powering solutions for mobile devices and infrastructure.
- Existing antenna designs often lack reconfigurability and integration capabilities with power sources.
Purpose of the Study:
- To design and validate a novel reconfigurable MIMO antenna array with integrated solar cells for 5G self-power applications.
- To investigate the antenna's performance across multiple sub-6 GHz frequency bands.
- To demonstrate beamforming control using optical switches.
Main Methods:
- A 3D cubical MIMO antenna array with four elements was designed and fabricated.
- Coplanar waveguide (CPW) excitation was used for each antenna element.
- Light Dependent Resistors (LDRs) controlled by optical switches were implemented for radiation pattern control.
- S-parameters, gain, and radiation patterns were experimentally measured.
Main Results:
- The antenna array operated at three main frequency bands: 3.6 GHz, 3.9 GHz, and 4.9 GHz.
- Excellent impedance matching (S11 ≤ -10 dB) and low mutual coupling (< -20 dB) were achieved.
- Maximum gains of 3.6 dBi, 6.9 dBi, and 3.5 dBi were recorded at the respective frequencies.
- Significant beamforming was demonstrated by altering the main lobe direction at 3.9 GHz.
Conclusions:
- The proposed reconfigurable MIMO antenna array with solar cell integration is suitable for 5G self-power applications.
- The design offers controllable beamforming and efficient operation in sub-6 GHz bands.
- This technology is highly applicable for femtocell networks in 5G systems.

