October 1977 | NTIA Technical Memo TM-77-242

EHF Transfer and Shielding Properties of Air: Summary of 1974–1977 Activities

Hans J. Liebe; Gary G. Gimmestad


This is the final report on work performed at the Institute for Telecommunication Sciences on “Atmospheric Transfer and Shielding Properties in the 50 to 75 GHz Band” (ARO Proposal NR. 12233 GS).

The microwave spectrum of oxygen (02—MS ) was investigated with a pressure-scanning dual-resonator spectrometer between 53 and 64 GHz and with a nonresonant cavity spectrometer at 119 GHz under simulated atmospheric conditions. This summary is intended as a wrap-up and guide to the various outputs covering three main topics : new spectroscopic measurement technique; extensive O2-MS laboratory studies; and engineering formulation and modeling of clear air (molecular) EHF radio path transfer properties.

Keywords: atmospheric propagation; oxygen microwave spectrum; dispersion spectroscopy; EHF transfer function

To request a reprint of this report, contact:

Lilli Segre, Publications Officer
Institute for Telecommunication Sciences
(303) 497-3572

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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