Title :
Electronic beam scanning in millimeter-wave band with dielectric-ferrite loaded antennas
Author :
Aydin, Osman ; Hizal, Altunkan
Author_Institution :
Dept. of Electr. & Electron. Eng., Middle East Tech. Univ., Ankara, Turkey
Abstract :
The radiation characteristics of magnetic dipoles in a grounded planarly layered structures including both the perpendicularly magnetized ferrite and dielectric media are investigated. The asymmetrical coupled transmission line representation is used to solve the Fourier transformed transversal field equations in the ferrite layer. However, in the dielectric layer the TE and TM modes are decoupled. Electronic beam scanning at millimeter-wave frequencies is obtained by changing the DC magnetic field at suitable conditions. The effects of various material parameters and frequency on the radiation pattern are also examined
Keywords :
Fourier transforms; antenna radiation patterns; dielectric-loaded antennas; dipole antennas; millimetre wave antennas; scanning antennas; transmission lines; DC magnetic field; Fourier transformed transversal field equations; TE modes; TM modes; asymmetrical coupled transmission line; dielectric layer; dielectric-ferrite loaded antennas; electronic beam scanning; ferrite layer; grounded planarly layered structures; magnetic dipoles; material parameters; millimeter-wave band; millimeter-wave frequencies; perpendicularly magnetized ferrite; radiation characteristics; Anisotropic magnetoresistance; Dielectric substrates; Ferrites; Frequency; Loaded antennas; Magnetic anisotropy; Magnetic fields; Maxwell equations; Millimeter wave technology; Perpendicular magnetic anisotropy;
Conference_Titel :
Electrotechnical Conference, 1994. Proceedings., 7th Mediterranean
Conference_Location :
Antalya
Print_ISBN :
0-7803-1772-6
DOI :
10.1109/MELCON.1994.381071
