Compensating group delay distortion of signals based on engineered material dispersion

Dispersion, which originates from the total frequency responses of materials, devices and transmission lines, makes envelope distortion of signals inevitable in transmission systems. In this study, we investigate the group delay distortion of a signal due to the presence of dispersion in transmissio...

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Bibliographic Details
Published inAIP advances Vol. 7; no. 4; pp. 045208 - 045208-6
Main Authors Wang, Chun, Zhu, Zhongbo, Cao, Cheng, Qiao, Shan, Li, Changzhi, Ye, Dexin
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 01.04.2017
AIP Publishing LLC
Subjects
Circuits
Compensation
Compressors
Delay
Dispersion
Distortion
Frequencies
Frequency response
Group delay
Transmission lines
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Summary:Dispersion, which originates from the total frequency responses of materials, devices and transmission lines, makes envelope distortion of signals inevitable in transmission systems. In this study, we investigate the group delay distortion of a signal due to the presence of dispersion in transmission systems, and propose an approach to eliminate the distortion by compensation based on engineered material dispersion. We demonstrate theoretically and experimentally that utilizing the anomalous frequency response of a dispersive material, envelope distortion of a signal passing through a given transmission system can be fully compensated. Compared with previous researches on dispersion compensation using grating compressors or chirp compressors in optics and non-Foster circuits in microwave bands, the proposed approach is robust and scalable to other frequency bands.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.4980148