Wave-Interference Explanation of Group-Delay Dispersion in Resonators

被引：17

作者：

Zhang, Qingfeng ^{[1
]}

Sounas, Dimitrios L. ^{[2
]}

Gupta, Shulabh ^{[3
]}

Caloz, Christophe ^{[1
]}

机构：

[1] Ecole Polytech, Dept Elect Engn, Poly Grames Res Ctr, Montreal, PQ H3T1J4, Canada

[2] Univ Texas Austin, Metamat & Plasmon Res Grp, Austin, TX 78712 USA

[3] Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China

来源：

IEEE ANTENNAS AND PROPAGATION MAGAZINE | 2013年 / 55卷 / 02期

关键词：

Resonators; group delay; pulse propagation; dispersion; interference; superluminality;

D O I：

10.1109/MAP.2013.6529352

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a rigorous and intuitive wave-interference explanation of group-delay dispersion in resonators. It considers both one-port and two-port lossless and lossy resonators under the complementary frequency-domain and time-domain perspectives. The reasons for the group-delay dispersive nature of a resonator and for the phenomenon of negative group delay (superluminality) in a lossy resonator are clearly explained in terms of the constructive and destructive interferences of multiply reflected pulses.

引用

页码：212 / 227

页数：17

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