Abstract: A doppler navigation antenna having automatic land-sea error correction through the utilization of two somewhat differently inclined lobe groups consisting of four lobes each, and employing a plane radiator group which comprises a plurality of individual radiators arranged in parallel rows. Each end of each radiator is fed by a pair of feed lines which extend transversely in the rows, the individual feed lines of each pair of feed lines having slightly different phase delay characteristics.

Abstract: The antenna arrangement for radar or direction finding purposes, respectively, has sum and difference patterns for mono-pulse operation comprising a reflector and at least two linearly polarized exciters located approximately in the center between which perpendicular to their polarization direction a metallic conductive plane partition is disposed which extends to the reflector and stands perpendicularly thereon, wherein the partition does not extend through the entire reflector from edge to edge but is arranged only approximately in the area of the exciters.