【摘要】 本文从全波场分析结果出发 ,提取了 PBG单元结构的集总等效有耗电路模型。对每个 PBG单元采用时域有限差分 (FDTD)方法进行全波分析 ,然后用 Cauer部分分式展开形式和网络综合技术 ,由全波分析结果提取等效有损电路模型参数 ,并将提取获得的 PBG单元等效电路模型嵌入 HP- ADS软件对整个 PBG结构进行 SPICE分析 ,得到的散射参量和全波分析结果比较基本一致 ,证明了该模型的准确性。这种模型可以嵌入电路分析和设计软件中 ,用来对应用了 PBG结构的无源和有源电路进行优化与设计更多还原

【Abstract】 In this paper, a lumped element equivalent circuit model for a photonic band-gap (PBG) cell structure is derived from three dimensional full-wave field simulation results. FDTD analysis is adopted upon each PBG cell. The equivalent lossy circuit parameters of these cells are extracted from FDTD analysis results by using Cauer’s network synthesis technique. Then the extracted circuit models of each cell are applied for the whole PBG analysis with HP-ADS software. The S-parameters reveal good agreement with full wave analysis results which prove the accuracy of the model. The obtained equivalent accurate model can be embedded into a SPICE circuit simulator for design and optimization purpose of some passive or active circuits with PBG structures.更多还原