BROADBEAM ECM ANTENNAS FOR DESTROYER INSTALLATIONS

Abstract

Site reflections reduce the isolation of omniazimuth antennas below the value required for stable operation of the high-gain amplifiers used in lectronic decoy systems, unless the top of the highest mast is used as an antenna site. An analysis and development program to build a dual semi-circular azimuth coverage antenna has been conducted. The objectives were to choose a universally available site, measure the ships structure reflection from this site, develop an antenna with a pattern shaped to fit the measured contour and test the antenna aboard ship to prove the satisfactory operation of the beacon with properly designed antennas. Horizontally polarized slot antennas were designed to fit the required pattern in the S and X bands. They were installed aboard the USS KRAUS, one of the ships whose contour was measured, and tested at sea where experimental verification of satisfactory performance was obtained.

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Document Details

Document Type
Technical Report
Publication Date
Mar 18, 1966
Accession Number
AD0371638

Entities

People

  • A. J. Jesswein
  • N. J. Lesko

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Antennas
  • Deception
  • Destroyers
  • Frequency
  • Frequency Bands
  • Gain
  • High Gain
  • Measurement
  • Military Research
  • Power Dividers
  • Reflection
  • Ships
  • Specifications
  • Standards
  • Test And Evaluation
  • X Band

Fields of Study

  • Engineering

Readers

  • Naval Architecture and Marine Engineering.
  • Phased Array Antenna Design.
  • Systems Analysis and Design