Title :
Chirping unit cell length to increase frozen-mode bandwidth in nonreciprocal MPCs
Author :
Chilton, Ryan A. ; Lee, Robert
Author_Institution :
Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH
Abstract :
A scheme for increasing the frozen-mode bandwidth of a nonreciprocal magnetic photonic crystal (MPC) has been introduced. Finite-element methods in both the frequency and time domains are used to numerically investigate the dispersion characteristics of both chirped and nonchirped MPC structures. Chirping was observed to increase the bandwidth of the MPC at the expense of lower frozen-mode amplitude. Two applications of chirped MPCs have been suggested: an isolator and delay line
Keywords :
dispersion (wave); finite element analysis; magnetic materials; photonic crystals; dispersion compensation; finite element methods; frozen mode bandwidth; magnetic photonic crystals; Anisotropic magnetoresistance; Bandwidth; Chirp; Dielectrics; Ferrites; Finite element methods; Magnetic materials; Matrix decomposition; Photonic crystals; Slabs; Dispersion compensation; finite-element methods; frozen mode; magnetic photonic crystals (MPCs);
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2005.860493
