Wang, J., Ding, Z., Nasimuddin, & Alphones, A. (2025). A Polarization-Reconfigurable Metasurface Antenna for 3.4 GHz Bluetooth Applications. 2025 18th IEEE United Conference on Millimeter Waves and Terahertz Technologies (UCMMT), 1–3. https://doi.org/10.1109/ucmmt67044.2025.11287064
Abstract:
This paper proposes a polarization-reconfigurable metasurface antenna designed for 3.4 GHz Bluetooth communication applications. The antenna has a compact overall size of only 0.55λ0×0.55λ0×0.008λ0 and adopts a metasurface structure composed of irregular hexagons and chamfered rectangles arranged radially. Two PIN diodes (SMP1345 series) are integrated in the central region to dynamically control the current paths, enabling flexible switching between linear-polarization (LP) and circular-polarization (CP). Simulation results show that in the ON-state of the PIN diodes, the antenna works in linear-polarization-mode with an impedance bandwidth (IBW) of 39.1%(2.49−3.70GHz) and a max. gain of 5.3 dBi. In OFF-state, the antenna switches to circular polarization, achieving an IBW of 41.4%(2.41−3.67GHz), a 3dB axial-ratio bandwidth (ARBW) of 38.4%(2.46−3.63GHz), and a peak gain of 4.5 dBi. Related with traditional single-polarized antennas, this design offers greater polarization flexibility and improved robustness against multipath interference, making it suitable for complex wireless communication environments.
License type:
Publisher Copyright
Funding Info:
There was no specific funding for the research done