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Improving the Performance of Paper-Based Dipole Antennas by Electromagnetic Flux Concentration
R Carvalho1,2, R Brito-Pereira1,2,3, N Pereira1,2
1Physics Centre of Minho and Porto Universities (CF-UM-UP), Universidade do Minho, 4710-057 Braga, Portugal.
ACS Applied Materials & Interfaces
|February 21, 2023
Summary
Researchers developed printable, flexible antennas using paper and silver nanoparticles. Adding a magnetic layer significantly improved signal reflection and transmission range for Internet of Things (IoT) devices.
Area of Science:
- Advanced Materials Science
- Nanotechnology
- Wireless Communication Engineering
Background:
- Designing flexible electronic devices, especially for the Internet of Things (IoT), is crucial for modern applications.
- Antennas are key components in wireless communication, facing challenges in flexibility, size, cost, and sustainable production.
- Optimizing antenna performance, specifically reflection coefficient and transmission range, is essential for reliable wireless communication.
Purpose of the Study:
- To design and optimize screen-printed, flexible antennas with enhanced functional properties.
- To investigate the impact of incorporating a magnetoactive layer on antenna performance.
- To explore sustainable materials and printing technologies for electronic devices.
Main Methods:
- Screen printing of paper@Ag-based antennas.
- Integration of a Polyvinyl Alcohol-Iron Oxide-Silver (PVA-Fe3O4@Ag) magnetoactive layer.
- Characterization of antenna performance, including reflection coefficient (S11) and maximum transmission range.
Main Results:
- Achieved significant improvement in reflection coefficient (S11) from -8 dB to -56 dB.
- Increased the maximum transmission range from 208 m to 256 m.
- Demonstrated the effectiveness of magnetic nanostructures in optimizing antenna functionality.
Conclusions:
- The developed paper@Ag antennas with a PVA-Fe3O4@Ag layer offer superior performance for wireless communication.
- The use of printing technologies and sustainable materials advances the field of eco-friendly electronics.
- These optimized antennas have potential applications in broadband arrays and portable wireless devices.
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