Patent ID: 9070972
Filing Date: 2015-06-30
Classification: G01S,H01Q

Abstract:
1. A beam forming device comprising: wideband transmit circuitry comprising at least one transmit antenna that transmits radiation towards a scene, wherein a frequency of the radiation changes with time in a deterministic way within a wideband frequency range, a receiver comprising at least two receive antennas and at least one receive element that receive radiation from said scene and that generate receive signals from said received radiation, and beam forming circuitry configured to perform a beam forming to form a receive beam and obtain beam formed output signals from said receive signals based on beam forming weights, wherein: for different samples or groups of subsequent samples of a receive signal, a sample representing said receive signal at a different frequency, a frequency-dependent weight is used for the beam forming, and frequency-dependent weights are configured to result in a predetermined shape of said receive beam.