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A varactor-based reconfigurable multifunctional metasurface capable ofsimultaneous beam steering, polarization conversion and phase offset isproposed in this paper. The unit cell is designed to naturally decompose theincident waves into two equal amplitude orthogonal linear components, and byintegrating varactors, the reflection phase of the field components can beengineered from $-180^{\circ}$ to $180^{\circ}$.Taking advantage of theinfinite states of the varactors, this design integrates a new function, thephase offset. After simulation validation of its capability, a four-layer $7$by $6$ unit one-dimensional prototype is fabricated as a printed circuit board.It is experimentally demonstrated that it switches between X/Y and circularpolarization with more than $10$ dB cross polarization isolation, whilereaching $\pm45^{\circ}$ steering and $\pm180^{\circ}$ phase offset.

Multifunctional Metasurface: Simultaneous Beam Steering, Polarization Conversion and Phase Offset