Patent ID: 9448305
Filing Date: 2016-09-20
CPC Classification: G01S,H01Q

Claim Text:
1. An apparatus comprising: a scattering antenna having a first plurality of scattering elements, each of the scattering elements in the first plurality of scattering elements having an individual electromagnetic response to an incident electromagnetic wave, and wherein the scattering antenna is configured to produce a first radiation field responsive to the incident electromagnetic wave; a reflector antenna arranged to receive at least a portion of the first radiation field, the reflector antenna having a second plurality of scattering elements, wherein the reflector antenna is responsive to reflect a portion of the first radiation field to produce a second radiation field different from the first radiation field; a detector configured to receive at least a portion of the second radiation field; and wherein the scattering antenna includes a waveguide supportive of a discrete set of modes, and wherein the scattering antenna is configured to produce a first set of radiation field patterns corresponding to the set of modes.