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Time-delayed directional beam phased array antenna

United States Patent

October 19, 2004
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
An antenna comprising a phased array of quadrifilar helix or other multifilar antenna elements and a time-delaying feed network adapted to feed the elements. The feed network can employ a plurality of coaxial cables that physically bridge a microstrip feed circuitry to feed power signals to the elements. The cables provide an incremental time delay which is related to their physical lengths, such that replacing cables having a first set of lengths with cables having a second set of lengths functions to change the time delay and shift or steer the antenna's main beam. Alternatively, the coaxial cables may be replaced with a programmable signal processor unit adapted to introduce the time delay using signal processing techniques applied to the power signals.
Fund; Douglas Eugene (Lenexa, KS), Cable; John William (Kansas City, MO), Cecil; Tony Myron (Kansas City, MO)
Honeywell Federal Manufacturing & Technologies, LLC (Kansas City, MO)
10/ 342,581
January 14, 2003
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT PROGRAM The present invention was developed with support from the U.S. government under Contract No. DE-AC04-01AL66850 with the U.S. Department of Energy. Accordingly, the U.S. government has certain rights in the present invention.