Doctoral Dissertations

Keywords and Phrases

Frequency domain techniques; Printed circuit board connectors; radiated power; Transmission lines

Abstract

"This dissertation explores two topics pertinent to electromagnetic compatibility research: maximum crosstalk estimation in weakly coupled transmission lines and modeling of electromagnetic radiation resulting from printed circuit board/high-density connector interfaces. Despite an ample supply of literature devoted to the study of crosstalk, little research has been performed to formulate maximum crosstalk estimates when signal lines are electrically long. Paper one illustrates a new maximum crosstalk estimate that is based on a mathematically rigorous, integral formulation, where the transmission lines can be lossy and in an inhomogeneous media. Paper two provides a thorough comparison and analysis of the newly derived maximum crosstalk estimates with an estimate derived by another author. In paper two the newly derived estimates in paper one are shown to be more robust because they can estimate the maximum crosstalk with fewer and less restrictive assumptions. One current industry challenge is the lack of robust printed circuit board connector models and methods to quantify radiation from these connectors. To address this challenge, a method is presented in paper three to quantify electromagnetic radiation using network parameters and power conservation, assuming the only losses at a printed circuit board/connector interface are due to radiation. Some of the radiating structures are identified and the radiation physics explored for the studied connector in paper three. Paper four expands upon the radiation modeling concepts in paper three by extending radiation characterization when material losses and multiple signals may be present at the printed circuit board/connector interface. The resulting radiated power characterization method enables robust deterministic and statistical analyses of the radiated power from printed circuit board connectors. Paper five shows the development of a statistical radiated power estimate based on the radiation characterization method presented in paper four. Maximum radiated power estimates are shown using the Markov and Chebyshev inequalities to predict a radiated power limit. A few maximum radiated power limits are proposed that depend on the amount of known information about the radiation characteristics of a printed circuit board connector"--Abstract, page iv.

Advisor(s)

Beetner, Daryl G.

Committee Member(s)

Fan, Jun, 1971-
Pommerenke, David
Drewniak, James L.
Basilio, Lorena

Department(s)

Electrical and Computer Engineering

Degree Name

Ph. D. in Electrical Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Summer 2014

Journal article titles appearing in thesis/dissertation

  • Maximum crosstalk estimation in weakly coupled transmission lines
  • Maximum crosstalk estimation in lossless and homogeneous transmission lines
  • Electromagnetic radiation resulting from PCB/high-density connector interfaces
  • Quantifying high-density connector radiation in a lossy multi-signal environment
  • Statistical estimates of maximum radiated power from high-density connectors

Pagination

xiii, 237 pages

Note about bibliography

Includes bibliographical references.

Rights

© 2014 Matthew Scott Halligan, All rights reserved.

Document Type

Dissertation - Open Access

File Type

text

Language

English

Library of Congress Subject Headings

Printed circuits -- Design and construction
Crosstalk
Electromagnetic interference -- Measurement
Telecommunication lines

Thesis Number

T 10531

Electronic OCLC #

894224846

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