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
收藏
页码：212 / 227
页数：17
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