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http://dx.doi.org/10.26866/jees.2019.19.1.56

Design Method for Negative Group Delay Circuits Based on Relations among Signal Attenuation, Group Delay, and Bandwidth  

Na, Sehun (Department of Electronics Engineering, College of Electronics and Information, Kyung Hee University)
Jung, Youn-Kwon (Avionics Radar Team, Hanwha Systems)
Lee, Bomson (Department of Electronics Engineering, College of Electronics and Information, Kyung Hee University)
Publication Information
Journal of electromagnetic engineering and science / v.19, no.1, 2019 , pp. 56-63 More about this Journal
Abstract
Typical negative group delay circuits (NGDC) are analyzed in terms of signal attenuation, group delay, and bandwidth using S-parameters. By inverting these formulations, we derive and present the design equations (for NGD circuit elements) for a desired specification of the two among the three parameters. The proposed design method is validated through simulation examples for narrow- and wide-band pulse inputs in the time and frequency domains. Moreover, an NGDC composed of lumped elements is fabricated at 1 GHz for measurement. As a function of frequency, the circuit-/EM-simulated and measured group delays are in good agreement. The provided simple NGDC design equations may be useful for many applications that require compensations of some signal delays.
Keywords
Bandwidth; Negative Group Delay; Passive Element; Signal Attenuation; Synthesis;
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Times Cited By KSCI : 1  (Citation Analysis)
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