Title :
Ferrite substrate in patch antennas for millimeter wave applications
Author :
Vasconcelos, C. F L ; Silva, S.G. ; Albuquerque, M.R.M.L. ; D´Assunção, A.G. ; Oliveira, J. R S
Author_Institution :
Dept. de Eng. Eletr., Univ. Fed. do Rio Grande do Norte, Natal, Brazil
Abstract :
This paper aims to study the radiation characteristics of annular ring microstrip antennas printed on a double-layered substrate that is constituted by an isotropic and a ferrite layers. The influence of the applied dc magnetic bias field on the radiation characteristics of these structures is examined. The analysis is performed in the Hankel transform domain using Hertz vector potentials and Galerkin method. Numerical results are presented for the antenna main characteristics such as resonant frequency and radiation pattern.
Keywords :
Galerkin method; Hankel transforms; antenna radiation patterns; ferrites; microstrip antennas; millimetre wave antennas; Galerkin method; Hankel transform; Hertz vector potential; annular ring microstrip antenna; dc magnetic bias field; double-layered substrate; ferrite layer; ferrite substrate; isotropic layer; millimeter wave application; patch antenna; radiation characteristics; radiation pattern; resonant frequency; Ferrites; Magnetic analysis; Magnetic domains; Magnetic resonance; Microstrip antennas; Millimeter wave technology; Moment methods; Patch antennas; Performance analysis; Resonant frequency; Ferrite substrates; Hertz vector potentials; annular ring antennas; microstrip antennas;
Conference_Titel :
Microwave and Optoelectronics Conference (IMOC), 2009 SBMO/IEEE MTT-S International
Conference_Location :
Belem
Print_ISBN :
978-1-4244-5356-6
Electronic_ISBN :
1679-4389
DOI :
10.1109/IMOC.2009.5427628
