Ding, Z., Li, J., Cao, J., Wang, H., Chia, M. Y.-W., & Nasimuddin, N. (2025). Wideband Dual-Polarized Metasurface Antenna with Polarization Reconfigurable Controlled by Diode and Resistor, Featuring Low RCS. IEEE Antennas and Wireless Propagation Letters, 1–5. https://doi.org/10.1109/lawp.2025.3530170
Abstract:
A polarization reconfigurable metasurface wideband antenna with dual polarized and a low radar cross
section (RCS) is presented. The antenna employs a diode positioned between two transmission lines to control the current direction and a resistor on a defected-ground branch to manage phase shifts, enabling seamless transitions between circular polarization (CP) and linear polarization (LP). The elliptical metasurface design contributes to a reduced RCS. The design results are verified through measurement, showing an impedance bandwidth (IBW) of 49.1%, an axial ratio bandwidth (ARBW) of 23.2% for the diode is OFF, an IBW of 36.4% for the diode is ON, the IBW of the connected resistor is 40.7%, and the peak gains for the three states are 6.4 dBi, 4.4 dBi, and 4.2 dBi, respectively. The metasurface achieves a low RCS bandwidth ranging from 2 GHz to 24 GHz, showing a 6 dBsm reduction in RCS from 4.9 GHz to 19.7 GHz, which corresponds to a 120.3% decrease compared to a PEC plate.
License type:
Publisher Copyright
Funding Info:
There was no specific funding for the research done