Accession Number : ADD003004

Title :   Antenna for Receiving VLF/LF Transmission in Seawater.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Guerrino,David L ; Cole,Richard W , Jr

Report Date : 22 Jun 1976

Pagination or Media Count : 14

Abstract : The patent relates to an improved device and technique for improving the reception of very low frequency and low frequency transmissions in seawater. A loop antenna, wound on a ferrite core, is encapsulated in a water impermeable housing. Non-conducting elements are attached to the housing and extend outwardly therefrom to serve as barriers to conduction currents in the seawater. By varying the dimensions and number of the non-conducting members, the quality factor of the loop antenna can be increased to provide improved reception of VLF/LF signals.

Descriptors :   *Submarine antennas, *Loop antennas, *Patents, Underwater, Underwater communications, Very low frequency, Low frequency, Encapsulation, Radio reception, Housings(Enclosures)

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE