Optimization of fractal immittance networks
Optimization of fractal immittance networks
复制标题
分形导纳网络的优化
DOI：
10.1080/10587259908023380
复制
发表时间：
1999
影响因子：
0.7
通讯作者：
K. Saito
中科院分区：
文献类型：
--
作者：
M. Sugi;Y. Hirano;Y. Miura;K. Saito
摘要基于分布弛豫时间（DRT）模型，用电阻R和电容C组成的模拟电路模拟分形导抗Y（ω）<$ωa或Z（ω）<$ω−a（0<a<1）。通过数值计算，找出了使带宽最大的最佳弛豫时间间隔。结果发现，具有相位角误差的50倍带宽，例如，对于α =0.25、0.5和0.75，可以使用20个或更少的R-C对来实现±0.5°。
Abstract Fractal immittance, Y(ω)∝ωa or Z(ω)∝ω−a (0<a<1), is simulated by the analogue circuits composed of resistors R and capacitors C based on the distributed-relaxation-time (DRT) models. The optimum interval of relaxation times to give the widest bandwidth is searched by the numerical calculation. It is found that the bandwidth of 5 decades with a phase-angle error, e.g., of ±0.5° for a =0.25, 0.5 and 0.75 can be realized using twenty or less R-C pairs.