Fig. 1: Conformal metasurface and its static performance.
From: Real-data-driven real-time reconfigurable microwave reflective surface
a Illustration of the conformable rigid-flex printed circuit design. The substrate of each columns is made with 1.57 mm semi-rigid reinforced PTFE material designed for microwave applications. They are then bonded to a single flexible sheet made of 0.18 mm thick polyimide, with a feeding network on the bottom side to provide the varactors with d.c. bias voltages. b Photo of the prototype. c, d Measured reflection amplitude and phase response under normal incidence of the flat surface under various bias voltages.
