Dissertation/Thesis Abstract

Fundamental Limitations on the Terminal Behavior of Antennas and Nonuniform Transmission Lines
by Direen, Randal Hugh, Ph.D., University of Colorado at Boulder, 2011, 143; 3453702
Abstract (Summary)

The Authoritative Dictionary of IEEE Standard Terms provides two definitions for the quality factor, or Q, of a resonant system. These definitions suggest a fundamental relationship between the fractional bandwidth of a resonant system and the ratio of stored energy to dissipated energy within that system. We show this relationship is in general not true. The success of this relationship, however, inspires the research that follows. We seek to fine a more general, and fundamental, relationship between the energy within a system and the terminal behavior of that system. We apply our ideas to antennas theory and the theory of nonuniform transmission lines.

Indexing (document details)
Advisor: Kuester, Edward F.
Commitee: Curry, James H., Gasiewski, Albin, Holloway, Christopher, Janezic, Michael, Macsimovic, Dragan
School: University of Colorado at Boulder
Department: Electrical Engineering
School Location: United States -- Colorado
Source: DAI-B 72/07, Dissertation Abstracts International
Source Type: DISSERTATION
Subjects: Electrical engineering, Electromagnetics
Keywords: Antennas, Bandwidth, Quality factor, Recoverable energy, Stored energy, Transmission lines
Publication Number: 3453702
ISBN: 9781124620565
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