We propose a beam scanning system based on an extended Risley prism structure. This
system uses a rotating mirror structure and expands the original
construction of the balanced and stable Risley prism. There is much
research on extended Risley prism structures, but the scanned angle of
their extended systems is less than 180°. The proposed system in this
paper can expand scanned angle to 360°, showing practical significance
and application value in the field of beam scanning. This is achieved
by using reflectors and multiple transmitter and receiver structures
with optimized positions and transmission directions. Simulation
results show that the scanning range is 360° and
±
14
∘
in the horizontal and vertical
directions, respectively, at 110 m while the angular resolution is
0.2
∘
×
2
∘
.