Tri-band Metasurface for Polarization Conversion

A tri-band reflective metasurface for polarization conversion is presented. The simulated results show that the designed metasurface can convert linear polarized incoming wave to two circular polarized reflected wave from 6.8716.83GHz and 19.72-23.64GHz, respectively. And linear polarization rotation is achieved within the frequency band from 17.38 to 18.6GHz. The metasurface prototype is manufactured and measured. A good consistency is attained between the simulated and measured results.