Institute for Telecommunication Sciences
the research laboratory of the National Telecommunications and Information Administration

J. Wayde Allen

Abstract: The total radio frequency (RF) field strength is the sum of all signals incident at a given location. These signals can originate from many directions and have various polarizations. This complicates the measurement of the total RF field since commonly used antennas (dipoles, whips, etc.) respond to signals coming from a specific direction and with a specific polarization. This paper describes a prototype antenna constructed from three crossed dipole elements. The output from these three dipole elements can be used to detect signals having arbitrary polarization, and arriving from any direction. This makes it possible to perform real-time measurement of the total RF field.

Keywords: RF; radio; antenna; polarization; noise; spectrum survey; electromagnetic; crossed dipole; electro-space; environment; Table Mountain


To request a reprint of this report, contact:

Lilli Segre, Publications Officer
Institute for Telecommunication Sciences
(303) 497-3572
lsegre@ntia.doc.gov

For technical information concerning this report, contact:

J. Wayde Allen
Institute for Telecommunication Sciences
(303) 497-5871
wallen@ntia.doc.gov


Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

Back to Search Results