FIELD: physics, radio.
SUBSTANCE: invention relates to a hybrid mirror scanning antenna for multi-mode space synthetic aperture radar and is designed for scanning a given zone. An active phased array antenna-radiator has an aperture with a flat centre perpendicular to the focal axis of a parabolic reflector and edges whose planes are inclined relative the focal axis. That way, in order to radiate the same power, the invention requires fewer transceiving modules (TM) and their design is simplified owing to fewer requirements for the amount of control of the power of the transceiving modules. Reduction of the number of transceiving modules leads to reduction of the weight of the hybrid mirror scanning antenna. The invention can be used in multi-mode space polirimetric synthetic aperture radar antennae (SRA).
EFFECT: invention improves uniformity of the field on the cluster, making amplitude distribution similar to Fresnel distribution.
4 dwg
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