Analysis of the Microstrip Circulator with a Magnetized Ferrite Sphere in Millimeter Wave through FDTD Method with LS-SVM and PSO

Author

Ye, Z.B. ; Chen, R.S. ; Li, S.S.

Author_Institution

Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol.

fYear

2006

fDate

9-14 July 2006

Firstpage

3469

Lastpage

3472

Abstract

In this paper, a microstrip ferrite circulator is analyzed by FDTD combined with LS-SVM method. Also PSO is used to optimize the hyperparameter used in the LS-SVM algorithm, which should be tried again and again randomly in general. The results compare well with that obtained by the direct FDTD which have a good agreement with the experiment result. This hybrid method can eliminate the late unstability of the time domain response when predicting the time domain series and can improve the computational efficiency of the FDTD algorithm

Keywords

ferrite circulators; finite difference time-domain analysis; least squares approximations; millimetre wave circulators; particle swarm optimisation; support vector machines; FDTD method; LS-SVM; PSO; computational efficiency; finite difference time-domain method; least-squares support vector machines; magnetized ferrite sphere; microstrip ferrite circulator; millimeter wave; particle swarm optimization; time domain response; time domain series; Ferrites; Finite difference methods; Frequency; Magnetic analysis; Magnetic separation; Microstrip; Millimeter wave communication; Millimeter wave technology; Stochastic processes; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium 2006, IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

1-4244-0123-2

Type

conf

DOI

10.1109/APS.2006.1711363

Filename

1711363