Dual-Axis Metasurface Strain Sensor Based on Polarization–Phase-Deformation Relationship

Abstract

Herein, we propose an approach for sensitivity improvement of dual-axis strain sensing using the property of a metasurface (MS) that the phase response shifts sharply with the MS deformation. A feasible approach for phase measurement is first demonstrated by calculating multi-polarized reception when the incident electromagnetic (EM) wave has anisotropic phase values. A flexible MS consisting of periodically arranged lantern-shaped elements is designed and fabricated for dual-axis strain sensing and evaluation based on the proposed method. The simulation and measurement results demonstrated a high sensitivity of the proposed MS for strain sensing in the microwave band. The method can be used potentially in both pressure and tensile sensing. Moreover, the operational frequency can be extended to the THz range and even to the optical band.

A Triple-Band Reflective Polarization Conversion Metasurface with High Polarization Conversion Ratio for Ism and X-Band Applications

“…Thus, MS can be utilized for the realization of functionalities like polarization, gain control, and amplitude control [ 3 ]. The applications of these functionalities are used to realize perfect absorbers [ 4 ], frequency selective surfaces (FSS) [ 5 ], AMC reflectors and polarization converters [ 6 ] based on epsilon negative, and epsilon near to zero properties [ 7 ]. The metasurface is highly efficient in acquiring low-profile, high-efficiency, and broadband polarization converters [ 8 ].…”