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Extremely high-frequency beam steerable lens-fed antenna for vehicular sensor applications

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2 Author(s)
Dong, J. ; Virginia Polytech. Inst. & State Univ., Falls Church, VA, USA ; Zaghloul, A.I.

A low-profile, high-performance beam steerable antenna, also referred to as electrically steerable array or array, system is proposed for vehicular sensor applications. The antenna aperture is realised by a phased array fed with a tri-focal Rotman lens. Theory of designing the beam-forming network and an improved parametric study are presented, while the narrow-H-plane, broad-E-plane microstrip antenna fed by the printed lens is investigated for extremely high-frequency -band operation. The full wave simulation demonstrates good results for the antenna use over the required two-dimensional scanning range of ±45°.

Published in:

Microwaves, Antennas & Propagation, IET  (Volume:4 ,  Issue: 10 )