Title :
Radiation of dipoles in multilayered cylinder with ferrite layer
Author :
Aydin, O. ; Hizal, A.
Author_Institution :
Dept. of Electr. & Electron. Eng., Middle East Tech. Univ., Ankara, Turkey
Abstract :
Radiation characteristics of infinitesimal dipole in multilayered circular cylindrical structure including gyromagnetic media are investigated. Transversal field equations in spectral domain are obtained for gyromagnetic medium in cylindrical coordinates. These expressions are formed into a set of linear differential equations. The solution at each layer is expressed in terms of state transition matrices. Fields are matched at the interfaces. Far fields are evaluated asymptotically. The effects of changing the bias field, the thickness of the layers, the frequency, and the medium parameters are examined.
Keywords :
antenna radiation patterns; dipole antennas; electromagnetic wave scattering; ferrites; gyromagnetic effect; linear differential equations; EM wave scattering; bias field; cylindrical coordinates; dipole radiation; far fields; ferrite layer; frequency; gyromagnetic media; infinitesimal dipole; layer thickness; linear differential equations; medium parameters; multilayered circular cylindrical structure; radiation characteristics; spectral domain; state transition matrices; transversal field equations; Anisotropic magnetoresistance; Conducting materials; Differential equations; Electromagnetic scattering; Engine cylinders; Ferrites; Frequency; Gyromagnetism; Permeability; Transmission line matrix methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1996. AP-S. Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-3216-4
DOI :
10.1109/APS.1996.549961
