Manipulation of Arbitrary Polarizations and Phases Based on Metasurfaces

摘要

Polarization and phase are two essential properties of electromagnetic (EM)waves. A transmissive metasurface is proposed that can simultaneouslymanipulate the polarization and phase of the EM waves. The design has apowerful capability of rotating the polarization to any desired azimuth directionfor a linearly polarized (LP) wave and achieving the cross-polarizationconversion for a circularly polarized (CP) wave. Meanwhile, the transmissionphase of the cross-polarization can be dynamically controlled for the CP wave.The proposed metasurface is composed of two types of substrate-integratedwaveguides (SIW) in a cross arrangement, which has an insertion loss of lessthan 0.3 dB from 9.7 to 10.3 GHz. Some samples are fabricated and measurementsare performed, which are in satisfactory agreement with the theoreticaland simulated results, indicating the feasibility of the proposed method. Itis believed that the proposed design has many potential applications in thefields of imaging, communication, and radar systems.