Efficient Finite-Difference Time-Domain Modeling of Driven Periodic Structures and Related Microwave Circuit Applications

Dongying Li, C.D. Sarris
2008 IEEE transactions on microwave theory and techniques  
The paper proposes an efficient method to analyze the response of periodic structures to non-periodic excitations in the time domain, employing the Finite-Difference Time-Domain (FDTD) method. To that end, the array-scanning method, which has been previously associated with frequency-domain, integral formulations of periodic structure problems, is translated into the context of FDTD. Hence, the application of periodic FDTD techniques, based on the simulation of a single unit cell, to problems
more » ... volving non-periodic source excitations is enabled. While a validation case study involves a microstrip line on an electromagnetic band-gap substrate, the utilization of this approach to metamaterial structure modeling is envisaged.
doi:10.1109/tmtt.2008.927386 fatcat:wjjaervbc5dlvg2wqmfllvkxfi