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Author : Margo PoKempner
Publisher : Unknown
Page : 104 pages
File Size : 54,6 Mb
Release : 1980
Category : Radio frequency
ISBN : UIUC:30112075633237
Author : John M. Goodman
Publisher : Unknown
Page : 716 pages
File Size : 52,5 Mb
Release : 1988
Category : Ionosphere
ISBN : UCR:31210023607854
Author : United States. National Telecommunications and Information Administration
Publisher : Unknown
Page : 50 pages
File Size : 53,5 Mb
Release : 1980
Category : Telecommunication
ISBN : MSU:31293017241823
Author : United States. Federal Communications Commission
Publisher : Unknown
Page : 850 pages
File Size : 51,5 Mb
Release : 1988
Category : Telecommunication
ISBN : UOM:39015079862077
Author : Anonim
Publisher : Unknown
Page : 1088 pages
File Size : 54,9 Mb
Release : 1982
Category : Government publications
ISBN : OSU:32435030431597
Author : Anonim
Publisher : Unknown
Page : 1102 pages
File Size : 47,9 Mb
Release : 1982
Category : Government publications
ISBN : UIUC:30112063912361
Author : Anonim
Publisher : Unknown
Page : 892 pages
File Size : 49,6 Mb
Release : 1988
Category : Aeronautics
ISBN : UIUC:30112075701570
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author : Institute for Telecommunication Sciences
Publisher : Unknown
Page : 174 pages
File Size : 53,8 Mb
Release : 1979
Category : Telecommunication
ISBN : MINN:30000006404424
Author : Kenneth Davies
Publisher : IET
Page : 612 pages
File Size : 45,9 Mb
Release : 1990
Category : Science
ISBN : 086341186X
This introductory text replaces two earlier publications (Davies 1965, 1969). Among the topics: characteristics of waves and plasma, the solar-terrestrial system, the Appleton formula, radio soundings of the ionosphere, morphology of the ionosphere, oblique propagation, importance of amplitude and phase, earth-space propagation. Annotation copyrighted by Book News, Inc., Portland, OR
Author : International Radio Consultative Committee
Publisher : Unknown
Page : 600 pages
File Size : 55,6 Mb
Release : 1990
Category : Radio
ISBN : UCBK:C049368464
Author : International Radio Consultative Committee
Publisher : Unknown
Page : 730 pages
File Size : 40,7 Mb
Release : 1986
Category : Earth stations (Satellite telecommunication)
ISBN : STANFORD:36105021414516
Author : United States. Federal Communications Commission
Publisher : Unknown
Page : 730 pages
File Size : 44,7 Mb
Release : 2024-06-03
Category : Artificial satellites in telecommunication
ISBN : UOM:39015013016673
Author : Anonim
Publisher : Unknown
Page : 772 pages
File Size : 45,6 Mb
Release : 1999
Category : Radio meteorology
ISBN : OSU:32435064094485
Author : Anonim
Publisher : Unknown
Page : 814 pages
File Size : 47,6 Mb
Release : 1987
Category : Telecommunication
ISBN : CHI:27439447
Author : Y.T. Lo,S. W. Lee
Publisher : Springer Science & Business Media
Page : 2282 pages
File Size : 48,5 Mb
Release : 2013-06-29
Category : Technology & Engineering
ISBN : 9781461564591
Techniques based on the method of modal expansions, the Rayleigh-Stevenson expansion in inverse powers of the wavelength, and also the method of moments solution of integral equations are essentially restricted to the analysis of electromagnetic radiating structures which are small in terms of the wavelength. It therefore becomes necessary to employ approximations based on "high-frequency techniques" for performing an efficient analysis of electromagnetic radiating systems that are large in terms of the wavelength. One of the most versatile and useful high-frequency techniques is the geometrical theory of diffraction (GTD), which was developed around 1951 by J. B. Keller [1,2,3]. A class of diffracted rays are introduced systematically in the GTD via a generalization of the concepts of classical geometrical optics (GO). According to the GTD these diffracted rays exist in addition to the usual incident, reflected, and transmitted rays of GO. The diffracted rays in the GTD originate from certain "localized" regions on the surface of a radiating structure, such as at discontinuities in the geometrical and electrical properties of a surface, and at points of grazing incidence on a smooth convex surface as illustrated in Fig. 1. In particular, the diffracted rays can enter into the GO shadow as well as the lit regions. Consequently, the diffracted rays entirely account for the fields in the shadow region where the GO rays cannot exist.