Directional receiver antenna array - has two individual antennae which have single phase centre on reception from specified space angle

摘要

The two antennae (A1,A2) have different directional effect and a common output circuit (C). This circuit receives the output signals of the two antennae over separate transmission paths. From certain spatial direction zero reception occurs at the output terminals (1, 1') of the output circuit. The zero reception points can be adjusted all round an increased spatial angular range. The individual antennae are so selected as to comprise a phase centre during reception from the spatial angular range preset for the assembly. Each separate transmission path contains an amplifier (E1, E2) and a control circuit (S). The control voltages of this circuit adjust the amplification coefficients for the amplifiers in both paths.