Application of FPGA technology to accelerate the finite-difference time-domain (FDTD) method

摘要

The continuing advances in the field of electrical engineering, in areas like cellular communications, fiber optics, mobile and multi-gigahertz electronics have necessitated a computer-assisted design approach to the complex electromagnetic interactions and problems that arise. Finite-Difference Time-Domain (FDTD) Analysis is a very powerful tool for the modeling of electromagnetic phenomena. The algorithm is computationally intensive and simulations can run for a few hours to several days. Increasing the computation speed and decreasing the run times of this algorithm would bring greater productivity and new avenues of research to many facets of electrical engineering.The algorithm is transferred to custom FPGA-based hardware using a pipelined bit-serial arithmetic architecture. A one-dimensional resonator is used to verify the implementation and explore the hardware speed and costs. The computational speed is extremely fast and is not related to the number of computational cells in the simulation. Finally, a discussion of future research is presented.