We introduce a practical dielectric metasurface design for microwave
frequencies. The metasurface is made of an array of dielectric resonators held
together by dielectric connections thus avoiding the need of a mechanical
support in the form of a dielectric slab and the spurious multiple reflections
that such a slab would generate. The proposed design can be used either for
broadband metasurface applications or monochromatic wave transformations. The
capabilities of the concept to manipulate the transmission phase and amplitude
of the metasurface are supported by numerical and experimental results.
Finally, a half-wave plate and a quarter-wave plate have been realized with the
proposed concept
