Dual polarization scattering reconfigurable integrated coded metasurface antenna based on a rotating adjustable...

Area of Science:

• Electromagnetics and Metamaterials
• Antenna Engineering
• Microwave Engineering

Background:

• Metasurface antennas offer unique electromagnetic control capabilities.
• Achieving independent polarization control in reconfigurable metasurfaces remains a challenge.
• Existing designs often lack integrated radiation and scattering control.

Purpose of the Study:

• To design and demonstrate a rotating adjustable resistor-based dual-polarization scattering reconfigurable metasurface antenna.
• To achieve independent tuning of x-polarized and y-polarized scattering phases.
• To enable dynamic control over scattering properties for versatile applications.

Main Methods:

• Incorporation of four rotating adjustable resistors for independent phase tuning.
• Equivalent circuit analysis and scattering current distribution for verification.
• Design of an 8x8 array of unit structures for dynamic scattering control.
• Utilizing an "L" type patch feed for coupled feeding and compact design.

Main Results:

• Independent tuning of x-polarized and y-polarized scattering phases was successfully achieved.
• The 8x8 array demonstrated dynamic control over dual-polarization scattering phase distribution.
• The metasurface antenna exhibited an impedance matching bandwidth from 6.95 to 7.5 GHz.
• A peak gain of 19.4 dBi and favorable radiation characteristics were obtained.
• Experimental results closely matched simulation outcomes.

Conclusions:

• The proposed metasurface antenna effectively achieves independent control over dual-polarization scattering phases.
• The design enables dynamic reconfigurability and integrated radiation/scattering characteristics.
• The demonstrated performance validates the potential for advanced electromagnetic applications.