October 2012 | NTIA Technical Memo TM-13-489

Antenna Models for Electromagnetic Compatibility Analyses

Cou-Way Wang; T. Keech

Abstract: This memorandum contains two compilations of antenna parameters. The first one is the collection of rules, regulations, and recommendations regarding antennas that are published by authoritative institutions such as NTIAthe FCC, International Telecommunication Union, RTCA, Inc. (formerly Radio Technical Commission for Aeronautics), etc., and are relevant to EMC analyses. The information includes the antenna gain values, reference radiation patterns, sidelobe requirements, and other technical data. Thus, this memorandum is a library of the rules, regulations, and recommendations regarding antennas that are relevant to EMC analyses. This will enable regulators and spectrum managers to easily identify the appropriate antenna parameters for their EMC analyses. The second compilation is the recommendations of antenna parameters for NTIA and the federal agencies to conduct their EMC analysis tasks. NTIA conducts the following EMC analysis tasks for the federal agencies: system review for equipment approval, frequency assignment, and spectrum sharing studies. The official source of antenna parameters for these tasks is the NTIA’s Manual of Regulations and Procedures for Federal Radio Frequency Management. However, the Manual only provides antenna parameters for some radio services. NTIA technical staff evaluated the characteristics of the radio services, the federal usage of the radio spectrum, and the technical merit and practicality of the antenna parameters in the rules, regulations, and recommendations, and then developed recommendations of antenna parameters for all of the radio services that are compiled in this memorandum.

Keywords: VHF; UHF; antenna; gain; directivity; antenna gain values; L Band; mainlobe; off-axis; parabolic; reference radiation pattern; reflector; S Band; sidelobe; sidelobe requirements; radio spectrum efficiency

To request a reprint of this report, contact:

Ed Drocella, Chief,
Spectrum Engineering and Analysis Division
Office of Spectrum Management
National Telecommunications and Information Administration
(202) 482-1652
edrocella@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.

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