Patent ID: 7889097

Claim:
A traffic sensor for monitoring a roadway intersection, the traffic sensor comprising: an electronically steered transducer for creating a plurality of transducer views of the roadway intersection, the electronically steered transducer including: a plurality of radiating transducer elements; a plurality of corresponding phase shifters for controlling the phase of a signal that is transmitted through the plurality of radiating transducer elements; a transceiver system configured to: control the operation of the plurality of corresponding phase shifters; create a signal that is transmitted through the electronically steered transducer; and receive a signal or signal reflection through a receive transducer; and wherein the electronically steered transducer and the transceiver system interoperate to generate an aggregate sensor view; and an antenna feed structure for creating an amplitude window across the plurality of radiating transducer elements, the amplitude window reducing sidelobes of at least one of the transducer views in the plurality of transducer views.