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Analysis and design of antennas for air traffic collision avoidance systems.
Attribution
This is the abstract and citation. Full text lives at NASA NTRS — we link out rather than host. All credit to the authors and Legacy CDMS.
Abstract
Verbatim from NASA NTRS. Not paraphrased, not summarized.
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 ↗