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Main Title Characteristics of Transverse Electric and Magnetic Field Transmission Cells at Extremely Low Frequencies.
Author Wood, A. W. ; Joines, W. T. ; Blackman, C. F. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC. ;Swinburne Inst. of Tech., Hawthorn (Australia).
Year Published 1987
Report Number EPA/600/J-87/356;
Stock Number PB88-218359
Additional Subjects Impedance ; Electromagnetic wave transmission ; Very low frequencies ; Electromagnetic radiation ; Electric fields ; Magnetic fields ; Electromagnetic fields ; Measurement ; Reprints ; Transverse electric and magnetic field transmission cells ; TEM cells
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NTIS  PB88-218359 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
Abstract Transverse electric and magnetic field cells are often designed to subject samples to electromagnetic radiation of intrinsic impedance (E/H) that is the same as in free space, 377 ohms. Earlier work has shown this value to be correct for the RF region. In the study, measurements of magnetic field in the extremely low frequency regions and at dc indicate the E/H ratio to be around 300 ohms for frequencies less than 2 kHz in cells of a particular design. The lower value may, in part, be due to a redistribution of current in the central conductor as the frequency is lowered. (Copyright (c) Alan R. Liss, Inc., 1987.)
Supplementary Notes Pub. in Bioelectromagnetics, v8 p407-413 Nov 87. Prepared in cooperation with Swinburne Inst. of Tech., Hawthorn (Australia).
NTIS Title Notes Journal article.
Title Annotations Reprint: Characteristics of Transverse Electric and Magnetic Field Transmission Cells at Extremely Low Frequencies.
PUB Date Free Form c1987
Category Codes 46
NTIS Prices PC A02/MF A01
Primary Description 600/11
Document Type NT
Cataloging Source NTIS/MT
Control Number 826014627
Origin NTIS
Type CAT