Abstract: Antenna comprising a plurality of radial antenna elements, each comprising two or more radial conductive guide plates, each of the two or more radial conductive guide plates having a curved edge, a front edge and a bottom edge; wherein each radial antenna element and each radial guide plate lies on a radius of said outer circle, a first conductive sheet material which is mechanically and in a shape-locked way fixed onto, and optionally electronically, connected to a plurality of the curved edges of the plurality of radial antenna elements to form a conductive curved reflector, further comprising: one or more antenna feeds, the one or more antenna feeds being offset from the conductive curved reflector, each radial conductive guide plate being shared between a neighbouring antenna element on one side and a further neighbouring antenna element on the other side of the radial conductive guide plate.

Abstract: The present invention relates to a system (300) for reducing or cancelling unwanted signals when detecting objects of interest with a detection system (200). The detection system thereby is an antenna based system using two or more receive beams as echo response to an emission signal. The system (300) for reducing or cancelling unwanted signals comprises an input means (310) adapted for obtaining from said antenna system (210) receive signals from a first receive beam and receive signals from at least one second receive beam responsive to the same emission signal. It furthermore comprises a coupling means (320) adapted for coupling the receive signals from the first receive beam to the receive signals from the at least one second receive beam, so as to obtain a detection signal for the objects of interest with suppressed unwanted signal contribution.

Abstract: The present invention relates to a system (300) for reducing or cancelling unwanted signals when detecting objects of interest with a detection system (200). The detection system thereby is an antenna based system using two or more receive beams as echo response to an emission signal. The system (300) for reducing or cancelling unwanted signals comprises an input means (310) adapted for obtaining from said antenna system (210) receive signals from a first receive beam and receive signals from at least one second receive beam responsive to the same emission signal. It furthermore comprises a coupling means (320) adapted for coupling the receive signals from the first receive beam to the receive signals from the at least one second receive beam, so as to obtain a detection signal for the objects of interest with suppressed unwanted signal contribution.