A Reconfigurable Partially Reflective Surface PRS Antenna for Beam Steering
Lu-Yang Ji, Y. Jay Guo, Pei-Yuan Qin, Shu-Xi Gong,and Raj Mittra
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
pp. 2387 - 2395
Beam steering, partially reflective surface (PRS) antenna, phased array antenna, reconfigurable antenna
The design of a novel partially reflective surface
(PRS) antenna with the capability of beam steering is presented
in this paper. The beam steering is realized by employing a reconfigurable PRS structure to achieve a changeable reflection phase
as well as using a phased array as the source to excite the PRS
antenna. A prototype antenna including the biasing network is
fabricated and measured. It achieves a consistent beam steering
from -15? to 15? with respect to the broadside direction across
an overlapped frequency range from 5.5 to 5.7 GHz with measured
realized gains over 12 dBi. Good agreement between the simulated
and measured results for the input reflection coefficients and radiation patterns is achieved, which validates the feasibility of the
design principle. Compared with other beam steering PRS antennas, the proposed one enables a larger beam steering angle with
comparable gains, requires a simpler biasing network, and is more
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