Abstract:

A novel algorithm named equivalent circuit finite difference time domain (EC-FDTD) is realized, which intro duces lumped elements from transmission line theory into Yee cell. Due to its promising physical idea, it can be easily generalized to arbitrary dispersive media. The technology of streaming singleinstruction multipledata extensions (SSE) proposed by Intel is widely utilized in personal computers. SSE is a kind of parallel speedup technology in one core. The speedup technology can achieve up to fourfold increase theoretically without change in hardware. By comparisons with the results obtained by EC-FDTD, the ones by FDTD and the experimental results in the example of planar invertedF antenna (PIFA), the correctness of the algorithm is verified. Combined with SSE, more than twice speedup is generally achieved in the actual tests. The tests verify the efficiency of the SSE technology.