Accession Number : ADD013213

Title :   Dielectric Loaded Horn Antennas Having Improved Radiation Characteristics.

Descriptive Note : Patent, Filed 26 Oct 81, patented 8 May 84,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Hamid, Michael

Report Date : 08 May 1984

Pagination or Media Count : 7

Abstract : An H-plane sectoral horn antenna is loaded with low-loss dielectric inserts in alternative embodiments so as to reduce beamwidth, increase axial gain and to achieve non-mechanical beam scanning. In one embodiment, the antenna is transversely loaded with a multi-layer dielectric array containing an air gap of critical thickness between four dielectric strips. In another embodiment, the antenna is longitudinally and symmetrically loaded with wedge-shaped dielectric strips separated by a critical air gap between the dielectric and antenna walls. (Author)

Descriptors :   *PATENTS, *DIRECTIONAL ANTENNAS, *ANTENNA RADIATION PATTERNS, DIELECTRICS

Subject Categories : Electrical and Electronic Equipment
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE