Compensating group delay distortion of signals based on engineered material dispersion

Changzhi Li; Zhongbo Zhu; Cheng Cao; Shan Qiao; Changzhi Li; Dexin Ye; Chun Wang

doi:10.1063/1.4980148

Compensating group delay distortion of signals based on engineered material dispersion

Changzhi Li, Zhongbo Zhu, Cheng Cao, Shan Qiao, Changzhi Li, Dexin Ye, Chun Wang

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

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.

Original language	English
Article number	045208
Pages (from-to)	045208
Journal	AIP Advances
Volume	7
Issue number	4
DOIs	https://doi.org/10.1063/1.4980148
State	Published - Apr 1 2017

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title = "Compensating group delay distortion of signals based on engineered material dispersion",

abstract = "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.",

author = "Changzhi Li and Zhongbo Zhu and Cheng Cao and Shan Qiao and Changzhi Li and Dexin Ye and Chun Wang",

note = "Funding Information: This work was sponsored by the National Natural Science Foundation of China, under grants 61401393 and 61528104, ZJNSF under Grant LY16F010009, the Fundamental Research Funds for the Central Universities, and the China CASC foundation. Publisher Copyright: {\textcopyright} 2017 Author(s).",

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AU - Li, Changzhi

AU - Zhu, Zhongbo

AU - Cao, Cheng

AU - Qiao, Shan

AU - Li, Changzhi

AU - Ye, Dexin

AU - Wang, Chun

N1 - Funding Information: This work was sponsored by the National Natural Science Foundation of China, under grants 61401393 and 61528104, ZJNSF under Grant LY16F010009, the Fundamental Research Funds for the Central Universities, and the China CASC foundation. Publisher Copyright: © 2017 Author(s).

PY - 2017/4/1

Y1 - 2017/4/1

N2 - 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.

AB - 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.

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Compensating group delay distortion of signals based on engineered material dispersion

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