Author:
Wu Chia Ho,Qian Zhenyu,Wang Wei,Peng Song Tsuen,Liu Chengyang,Shen Jianqi,Ni Donghua,Ye Guoqiang,He Fang,Wang Xiaolong,Shen Linfang,Li Qichao
Abstract
AbstractSince a planar periodic transmission line can suppress drastically the electromagnetic coupling, it would be advantageous to use such a kind of transmission lines in solving the problem of miniaturization of circuit area. By adjusting the lattice constants and geometric parameters of periodic microstrip lines, a time domain characteristic impedance that is the same as that of conventional microstrip lines (CMLs) can be achieved. Such periodic microstrip lines can therefore be used to trick high-speed digital signals, causing a digital signal to misjudge the time domain characteristic impedance of the transmission lines. The theoretical analysis has been verified by our experimental measurement results. Besides, a specific expression for the characteristic impedance of lossless periodic artificial materials is deduced by a circuit model and a standard of misidentification for the characteristic impedance of periodic microstrip lines is given for the digital signals.
Funder
Zhejiang Zhaolong Interconnect Technology
National Natural Science Foundation of China
Publisher
Springer Science and Business Media LLC
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