Research/Patents/US 4905013
US 4905013Tier 3 — General Defense

FIN-LINE HORN ANTENNA

Assignee

US Government

Filed as: UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE SECRETARY OF THE NAVY

Filed

Jan 25, 1988

Granted

Feb 27, 1990

Location

San Diego CA (SAIC/General Dynamics)

Abstract

A fin line circuit card containing a fin line slot feeds a dipole antenna ich extends a quarterwave outside the waveguide and provides an energy beam focal point at or near the open end of the waveguide. The dipole antenna thus maintains a wide and nearly constant beamwidth, low VSWR and a circular symmetric radiation pattern for use in electronic warfare direction finding and surveillance applications.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Oct 3, 1988

Rescinded

Oct 6, 1989

Duration

1 year

Inventor

  • 1JOHN REINDEL

Sensitive facility: San Diego CA (SAIC/General Dynamics)

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records