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Fade Measurements into Buildings from 500 to 3000 MHzSlant-path fade measurements from 500 to 3000 MHz were made into six different buildings employing a vector network analyzer, a tower-mounted transmitting antenna and an automatically positioned receiving antenna. The objective of the measurements was to provide information for satellite audio broadcasting and personal communications satellite design on the correlation of fading inside buildings. Fades were measured with 5 cm spatial separation and every 0.2 percent of the frequency. Median fades ranged from 10 to 20 dB in woodframe houses with metal roofs and walls without and with an aluminum heat shield, respectively. The median decorrelation distance was from 0.5 to 1.1. m and was independent of frequency. The attenuation into the buildings increased only moderately with frequency in most of the buildings with a median slope of about 1 to 3 db/GHz, but increased fastest in the least attenuating building with a slope of 5 dB/GHz. The median decorrelation bandwidth ranged from 1.2 to 3.8 percent of frequency in five of the buildings, and was largest in the least attenuating building, with 20.2 percent of frequency.
Document ID
19970004358
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
Authors
Vogel, Wolfhard J.
(Texas Univ. Austin, TX United States)
Torrence, Geoffrey W.
(Texas Univ. Austin, TX United States)
Date Acquired
August 17, 2013
Publication Date
September 1, 1996
Publication Information
Publication: Proceedings of the Twentieth NASA Propagation Experimenters Meeting (NAPEX 20) and the Advanced Communications Technology Satellite (ACTS) Propagation Studies Miniworkshop
Subject Category
Communications And Radar
Accession Number
97N12567
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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