Transient Analysis of Systems with Exponential Transmission Lines

Hill, John; Mathews, David

doi:10.1109/tmtt.1977.1129211

Cited by 22 publications

(3 citation statements)

References 14 publications

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“…Even though a considerable amount of work has been done on multiple coupled uniform lines [1][2][3][4], the work reported on the time and frequency domain simulation of nonuniform multiple coupled microstrip and other inhomogeneous lines has been limited primarily to the case of single and symmetrical coupled lines [5][6].…”

Section: Ntlroductlonmentioning

confidence: 99%

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Computer Aided Analysis and Design of Multiple NonUniformly Coupled Microstrips and Other Transmission Lines

Hayden

Tripathi

1990

20th European Microwave Conference, 1990

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ABSTRAUEAnalysis and design techniques for nonuniform coupled line multiport networks are formulated.Techniques presented include the use of an enhanced piece-wise uniform stepped impedance model for general nonuniformly coupled line structures and a simple yet accurate CAD compatible SPICE model developed for identical nonuniformly coupled lines. Computed and measured results for typical structures are included to illustrate the distortion and cross-talk noise associated with coupled microstrip interconnects in microwave and high speed digital circuits. NTlRODUCTlONEven though a considerable amount of work has been done on multiple coupled uniform lines [1][2][3][4], the work reported on the time and frequency domain simulation of nonuniform multiple coupled microstrip and other inhomogeneous lines has been limited primarily to the case of single and symmetrical coupled lines [5][6].In this paper, techniques to provide solutions for the time and frequency domain response of general nonuniform coupled line multiports (e.g., Fig. 1) with both linear and nonlinear terminations are presented. The analysis and design techniques developed can be used to study signal distortion and crosstalk noise in packages and chip carriers for microwave and high speed digital circuits and to help design nonuniformly coupled line circuits. The piece-wise uniform model used extensively for single and symmetrical coupled lines is extended here to compute the time and frequency domain characteristics of general multiple coupled lines in an efficient and accurate manner.In addition a simple CAD compatible (e.g., SPICE) model for identical but nonuniform coupled lines is developed and is found to give surprisingly accurate results when compared with the more general analysis. Fi g. 1. Generic examples of multiple coupled nonuniform lines: chip carriers and integrated circuits.

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Section: Ntlroductlonmentioning

confidence: 99%

“…domain simulation of nonuniform multiple coupled microstrip and other inhomogeneous lines has been limited primarily to the case of single and symmetrical coupled lines [5][6].…”

mentioning

confidence: 99%

Computer Aided Analysis and Design of Multiple NonUniformly Coupled Microstrips and Other Transmission Lines

Hayden

Tripathi

1990

20th European Microwave Conference, 1990

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“…Transients in nonuniform transmission lines have been attacked by different methods, e.g., Laplace transform methods [7], methods of spline [9], methods of characteristics (2,9], finite difference methods [lo], spectral methods [ll], and recently, by scattering parameters [18]. Among these methods and approaches, the most general and accurate, possessing a physical interpretation, is the method of characteristics (frequently called the traveling wave method).…”

Section: Introductionmentioning

confidence: 99%