NDLI: Assumptions on the characteristic parameter of the coaxial ferrite waveguide phase shifter and its application

Content Provider	IEEE Xplore Digital Library
Author	Georgieva-Grosse, M.N. Georgiev, G.N.
Copyright Year	2012
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.) \|\| Consulting and Researcher in Physics and Computer Sciences, Meterstrasse 4, D-70839 Gerlingen, Germany (Georgieva-Grosse, M.N.)
Abstract	The notion characteristic parameter λ=λ(ρ, r0, \|α\|) of the azimuthally magnetized coaxial ferrite waveguide phase shifter, operating in the normal TE01 mode, is introduced by the relation λ = Δβr0/\|α\| in which Δβ= Δβ(ρ, r0, \|α\|) is the normalized differential phase shift produced by the device, r0 is its normalized outer radius, α is the off-diagonal permeability tensor element of the anisotropic load and ρ is the relative thickness of the central switching conductor (λ, Δβ, ρ, r0, \|α\| — real, positive). A numerical analysis is performed of the dependence of λ on ρ, r0 and \|α\|, the results of which are plotted graphically. Based on them three statements for the novel quantity and its application are formulated: i) assumption for independence of λ on certain of the parameters of phase shifter; ii) assumption on the choice of a value of λ to be used in the calculation of Δβ provided at a given operational state of a set-up with a chosen ρ and iii) assumption for the numerical equivalent of the error in figuring the phase shift through the characteristic parameter. Hypothesis i) is the principle one and reveals the properties of quantity λ, while ii) and iii) are its corollaries and express the main idea of an approximate method for counting up Δβ and determine the magnitude of its intrinsic error, resp. Illustrative examples demonstrate the effectiveness of the new approach.
Starting Page	1129
Ending Page	1132
File Size	360623
Page Count	4
File Format	PDF
ISBN	9781467303330
e-ISBN	9781467303354
DOI	10.1109/ICEAA.2012.6328800
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-02
Publisher Place	South Africa
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ferrites Geometry Phased arrays Tensile stress Phase shifters Magnetic anisotropy Conductors
Content Type	Text
Resource Type	Article

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