Accession Number : ADD014993

Title :   Transmission Coupler Antenna.

Descriptive Note : Patent, Filed 19 Jan 90, patented 7 May 91,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Abramo, Robert S

Report Date : 07 May 1991

Pagination or Media Count : 9

Abstract : A broad band HF communications antenna for surface ships has an increased survivability over the currently used twin fan antennas. Capacitively coupling a long, flat conductive strap to existing ship structures helps achieve broadband performance. Integral end sections of the long, flat conductive strap are bent at each end and a dielectric layer with a low dielectric constant is provided along the length of each end section. The end sections and dielectric layers provide the areas needed for capacitive coupling to a mast and stack or other parts of the ship's superstructure thereby creating a survivable and broadband HF communications antenna design.

Descriptors :   ANTENNA COMPONENTS, ANTENNAS, BROADBAND, COMMUNICATION AND RADIO SYSTEMS, CONDUCTIVITY, CONSTANTS, COUPLING CIRCUITS, DIELECTRIC PROPERTIES, DIELECTRICS, FANS, HIGH FREQUENCY, LAYERS, OCEAN SURFACE, SHIP STRUCTURAL COMPONENTS, SHIPS, STRAPS, SUPERSTRUCTURES, SURVIVABILITY, TRANSMITTANCE

Subject Categories : Electrical and Electronic Equipment
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE