Slotted cable localizer antenna

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6344831
SERIAL NO

09233744

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Abstract

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This invention relates to improvements in slotted cable runway localizer antennas for the Instrument Landing System (ILS). The antenna radiates simultaneous sum and difference patterns carrying standard ILS reference (CSB) and deflection (SBO) components of the transmitted signal. The signal components from an ILS transmitter are supplied through an rf bridge (hybrid) to both ends of the slotted cable structure. Optional isolators inserted in the coaxial feed lines improve the impedance presented to the transmitter.

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Patent Owner(s)

Patent OwnerAddress
WATTS ANTENNA COMPANY270 SUNSET PARK DRIVE HERNDON VA 20170

International Classification(s)

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  • 1999 Application Filing Year
  • H01Q Class
  • 767 Applications Filed
  • 405 Patents Issued To-Date
  • 52.81 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances1999200020012002200320042005200620070255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Watts, Jr Chester B Annandale, VA 5 4

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges5151773625135364701 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 90100 +0102030405060708090100110120130140150160

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