Accession Number : ADD012546

Title :   Phase Scan Antenna.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Stern,Richard A ; Babbitt,Richard W ; Borowick,John J

Report Date : 29 Sep 1986

Pagination or Media Count : 20

Abstract : A phase scan antenna suitable for millimeter wave radar applications is provided comprising a four-sided ferrite rod having a series of electromagnetic energy emitting slots along one side of the rod. The remaining three rod sides are enclosed by a metal, channel-shaped member which is spaced from the rod by a plastic, channel-shaped substrate member, so that energy emitted from the rod side which is opposite from the slotted rod side will be reflected to pass out the slotted rod side, to thereby enhance the antenna beam produced by the slotted rod side. A magnetic biasing coil having serially- interconnected coil portions is helically wound about the metal channel-shaped member with the coil portions disposed between the slots in the first rod side to cause scanning of the antenna beam. The ferrite rod may be end fed by either dielectric waveguide sections or hollow, metallic waveguide sections.

Descriptors :   *PATENT APPLICATIONS, *ANTENNA RADIATION PATTERNS, *FERRITES, *WAVEGUIDES, *SLOTS, RADAR, RODS, METALS, BIAS, COILS, MAGNETIC FIELDS, SIDES, DIELECTRICS, ELECTROMAGNETIC RADIATION, EMISSION, CIRCUIT INTERCONNECTIONS, MILLIMETER WAVES, SLOTS

Subject Categories : Electrical and Electronic Equipment
      Active & Passive Radar Detection & Equipment
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE