Research/Patents/US 5142290
US 5142290Tier 1 — UAP Program Assignee

WIDEBAND SHAPED BEAM ANTENNA

Assignee

Hughes Aircraft

Filed as: HUGHES AIRCRAFT COMPANY, A DE CORP.

Filed

Nov 17, 1983

Granted

Aug 25, 1992

Location

El Segundo CA (Aerospace Corp/TRW)

Abstract

A wideband shaped beam antenna having steep beam edge slopes in one plane is disclosed. An optical multiple beam antenna such as a geodesic lens antenna, a Luneberg lens or a circular folded pillbox, is coupled at selected points to a feed system having a power divider and phasing control. Coupling of the feed system to the optical multiple beam antenna is effected with a power transition having a wide frequency bandwidth and a capability of conducting high power levels. To shape the beam further, selected beams may be amplitude weighted. An aperture control device such as an E-plane sectoral horn, is attached when required, to narrow the beamwidth in the E-plane. By overlapping multiple beams of the optical multiple beam antenna in accordance with the invention, a sector beam having a constant position and constant steep edge slopes over an octave frequency bandwidth is obtained.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jul 10, 1984

Rescinded

Mar 24, 1992

Duration

7 years, 8 months

Inventor

  • 1EDWARD C. DUFORT

Sensitive facility: El Segundo CA (Aerospace Corp/TRW)

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