NDLI: Group-Delay Engineered Noncommensurate Transmission Line All-Pass Network for Analog Signal Processing

Content Provider	IEEE Xplore Digital Library
Author	Gupta, S. Parsa, A. Perret, E. Snyder, R.V. Wenzel, R.J. Caloz, C.
Copyright Year	1963
Abstract	A group-delay engineered noncommensurate transmission line two-port all-pass network for analog signal-processing applications is presented, analytically modeled, and experimentally demonstrated. This network consists of transversally cascaded C-sections, which are distributed implementations of the bridged-T equalizer lumped circuit. It is obtained by interconnecting the alternate ports of adjacent lines of a 2N -port coupled transmission line network with transmission line sections, and it is modeled using multiconductor transmission line theory with per-unit-length capacitance matrix C and inductance matrix L. By allowing the different C-sections of the network to exhibit different lengths, a generalized group-delay engineering procedure is proposed, where quasi-arbitrary group-delay responses are achieved by combining the group-delay responses of C-sections with different lengths. A computer design approach based on genetic algorithms is applied for synthesis, which consists of determining the structural parameters of the different C-section groups. Using this approach, noncommensurate networks are group-delay engineered in edge-coupled stripline technology, and Gaussian, linear and quadratic group-delay responses are realized. The theoretical results are validated by experiment. Finally, two application examples of analog signal processing-a tunable impulse delay line and a real-time frequency discriminator-using the proposed dispersive noncommensurate all-pass networks are presented.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	2392
Ending Page	2407
Page Count	16
File Size	2099450
File Format	PDF
ISSN	00189480
Volume Number	58
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transmission lines Signal processing Transmission line theory Distributed parameter circuits Transmission line matrix methods Multiconductor transmission lines Signal analysis Equalizers Integrated circuit interconnections Coupling circuits noncommensurate networks All-pass circuits analog signal processing dispersive media genetic algorithms (GAs) group-delay engineering multiconductor transmission lines
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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