Abstract
Flat mirrors, also known as flat parabolic surfaces, for
millimeter-wave and terahertz imaging systems are demonstrated. This flat
mirror is based on the metasurface in which an inexpensive printed circuit
board technology is used to realize copper patterns printed on an FR4
substrate. Compared to the conventional reflector antennas used today in
diverse applications (for homeland security, medical systems,
communication, etc.), the suggested mirror has major advantages in process
simplicity, mechanical flexibility, frequency alignment, weight, and cost.
The theoretical background, simulation results, experimental results, and
proof of concept are given in this Letter.
© 2016 Chinese Laser Press
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