Title page for ETD etd-11242003-123529


Type of Document Dissertation
Author Barts, Robert Michael
URN etd-11242003-123529
Title The Stub Loaded Helix: A Reduced Size Helical Antenna
Degree PhD
Department Electrical and Computer Engineering
Advisory Committee
Advisor Name Title
Stutzman, Warren L. Committee Chair
Brown, Gary S. Committee Member
Carver, Keith R. Committee Member
Davis, William A. Committee Member
Safaai-Jazi, Ahmad Committee Member
Keywords
  • antenna
  • helical antenna
Date of Defense 2003-10-20
Availability unrestricted
Abstract
This dissertation details the development of a novel reduced size axial mode helical antenna called the Stub Loaded Helix (SLH). The SLH achieves a significant reduction in helix size, both diameter and length, compared to the conventional axial mode helix antenna with only small compromises in performance. The SLH achieves this entirely through the use of a unique geometry. The performance characteristics of the SLH are explored through the use of computer simulations using NEC (Numerical Electromagnetics Code) to study the effects of design parameter variations. Based on those simulations, design guides are developed. The numerical simulations are verified though measurements of experimental prototypes. The program of experimental prototypes included the development of an appropriate impedance matching network for the SLH, which is also detailed.

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