Title :
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.
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;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1711363
