  As opposed to metasurfaces, metagratings represent themselves sparse
arrangements of scatterers. Established rigorous analytical models allow
metagratings to overcome performance of metasurfaces in beam steering
applications while handling less degrees of freedom. In this work we deal with
reflective metagratings that have only as few as one degree of freedom
(represented by a reactively loaded thin wire) per each propagating diffraction
order. We present a detailed design procedure and fabrication of three
experimental samples capable of establishing prescribed diffraction patterns.
The samples are experimentally studied in an anechoic chamber dedicated to
radar-cross-section bistatic measurements and results are compared with
three-dimension full wave numerical simulations. We identify and analyze
factors affecting operating frequency range of metagratings, suggest a strategy
to increase the bandwidth.
