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Analysis and design of antennas for air traffic collision avoidance systems.

NASA NTRS · Reprint (Version printed in journal) · 19720032905 · Published 2011-08-12 · Legacy CDMS · 2 authors

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Abstract and citation only, verbatim from NASA NTRS; full text lives there. All credit to the authors and Legacy CDMS.

Abstract

The analysis and design procedure of an antenna for a CW Doppler radar system being developed for pilot warning of midair collision hazards is presented. The antenna consists of two vertical arrays of half-wavelength dipoles mounted near a circular conducting cylinder. Each vertical array is composed of three vertical dipoles. Each array provides relatively uniform illumination (2.3 dB) in the forward 180-deg angular segment of the horizontal plane and approximately plus or minus 10 to 15 deg coverage in the vertical plane. The antenna could be used in a two-mode operation, either in a standard monopulse radar system (sum and difference amplitude patterns) or in a system where amplitude and phase are the measurable quantities.

Authors

  • Balanis, C. A. West Virginia University
  • Cockrell, C. R. NASA Langley Research Center

Citation

Balanis, C. A., Cockrell, C. R. (2011). Analysis and design of antennas for air traffic collision avoidance systems.. Legacy CDMS. NASA NTRS ID 19720032905. https://ntrs.nasa.gov/citations/19720032905 ↗