September 1987 | Technical Memorandum NTIA TM-87-129
Procedures for Calculating Field Intensities of Antennas
Cite This Publication
Andrew Farrar and Eugene Chang, “Procedures for Calculating Field Intensities of Antennas,” Technical Memorandum NTIA TM-87-129, U.S. Department of Commerce, National Telecommunications and Information Administration, Institute for Telecommunication Sciences, September 1987.
Abstract: This report discusses simplified procedures for calculating near and far field intensities of several types of aperture and wire antennas. The antenna technical characteristics listed in the Government Master File (GMF) were reviewed. For this analysis, two categories (i.e., linear and aperture) were found to be sufficiently representative of the majority of antenna types listed in the GMF. Existing analytical antenna models developed for a near field analysis of the antennas were identified. Some of these models were used to develop a simplified model for estimating near field radiation from Government radiocommunications systems. These models are conservative and are expected to yield higher field intensity or power density values than would be expected in actual practice. Measurements may be required to determine more exact values for these parameters.
Keywords: radio frequency radiation; computer model; antennas; Neodymium; Appleton-Hartree formula; linear and aperture antennas; near field analysis of antennas
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