Dual Space Fed Parallel Plate Lens Antenna Beamforming System.
DEPARTMENT OF THE ARMY WASHINGTON DC
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A beamforming system for a linear phased array antenna system which can be used in a monopulse transceiver, comprises a pair of series-connected parallel-plate-constrained unfocused lenses which provide a suitable amplitude taper for the linear array to yield a low sidelobe radiation pattern. Digital phase shifters are used for beam steering purposes and the unfocused lenses decorrelate the quantization errors caused by the use of such phase shifters.
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