NDLI: Criteria for phase shifter operation of an azimuthally magnetized coaxial ferrite waveguide

Content Provider	IEEE Xplore Digital Library
Author	Georgieva-Grosse, M.N. Georgiev, G.N.
Copyright Year	2010
Description	Author affiliation: Faculty of Mathematics and Informatics, University of Veliko Tirnovo “St. St. Cyril and Methodius”, BG-5000 Veliko Tirnovo, Bulgaria (Georgiev, G.N.) \|\| 2, Tcherny vrikh Str., BG-5138 Polikraishte, Bulgaria (Georgieva-Grosse, M.N.)
Abstract	Three criteria: a physical, a mathematical and a functional one for operation of the coaxial waveguide, completely filled with azimuthally magnetized ferrite, under for normal TE mode excitation, as a digital nonreciprocal phase shifter, are established. The first of them is deduced from the phase characteristics of configuration and determines the limits of the interval in which it provides differential phase shift for a specific value of the off-diagonal ferrite permeability tensor element. The second criterion associates the structure parameters with certain roots of its characteristic equation, expressed by complex confluent hypergeometric functions and with the related to them positive real L(c,ρ, n) numbers (c=3D 3, 0<ρ<1, n=3D 1). The third one specifies the limits of the domain of phase shifter operation. These are functions, representing in normalized form the dependence of phase shift at the cut-off frequencies and at the envelope lines, marking the end of the phase curves for negative ferrite magnetization from the side of higher frequencies, on the guide radius for a fixed central conductor thickness.
Starting Page	1
Ending Page	4
File Size	147003
Page Count	4
File Format	PDF
ISBN	9781424452880
e-ISBN	9781424459148
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-14
Publisher Place	Lithuania
Access Restriction	Subscribed
Rights Holder	Geozondas Co.
Subject Keyword	Phase shifters Coaxial components Ferrites Cutoff frequency Tellurium Permeability Tensile stress Equations Magnetization Conductors propagation Boundary value problems circular waveguides ferrite phase shifters numerical analysis
Content Type	Text
Resource Type	Article

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