Accession Number : ADD003213

Title :   Aircraft VLF/LF/MF Window Antenna Receiving System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Bickel,John E

Report Date : 24 Aug 1976

Pagination or Media Count : 4

Abstract : The patent describes apparatus for receiving the horizontal and vertical electric field components of incoming VLF, LF, and MF (10 KHz to 3000 kHz) signals that is easily portable and installed within minutes aboard aircraft with windows. A sheet of metal or matrix of interconnecting wires is placed against the inside surface of nonconducting windows on each side of the aircraft fuselage and used as the receiving antennas. The voltage sum of the two window antennas is proportional to the vertical electric field. The voltage difference of the two window antennas is proportional to the horizontal electric field particularly when the antennas are forward or to the rear of the wings extending from the fuselage.

Descriptors :   *Aircraft antennas, *Patents, Very low frequency, Low frequency, Medium frequency, Installation, Windows, Electric fields, Monitoring

Subject Categories : Aircraft
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE