Abstract: A stripline horizontally polarized dipole and passive director antenna ar, operative at L-band (1220-1280MHz), mounted in a 90.degree. corner reflector constructed of a grid of cylindrical rods which are hinged along its apex permitting folding of the reflector over the antenna array to protect the elements of the array, for example, during transport.

Abstract: An L-band radar and antenna array operating with an existing X-band surveance radar to provide a foliage penetration capability. The foliage penetration antenna consists of an array of L-band, stripline dipole/director elements placed in front of an array of broadwall waveguide slots which define an X-band aperture. The X-band aperture in addition to its own function, serves as a reflector for the dipole/director elements. Aperture sharing is thus provided for a dual frequency antenna without increasing the size of the existing X-band aperture.

Abstract: A line source antenna adapted for a light weight, compact phased array ra and consisting of a plurality of series fed radiating slots periodically located in the narrow side wall of a length of waveguide together with non-reciprocal latching ferrite phase shifters including dielectric loading sections and matching transformer sections on either side of phase shifters located between adjacent slot pairs.