Achieving Wide Bandwidth Electrically Small Antennas Using Internal Non-Foster Elements

Persistent Link:
http://hdl.handle.net/10150/305873
Title:
Achieving Wide Bandwidth Electrically Small Antennas Using Internal Non-Foster Elements
Author:
Cutshall, Ryan Thomas
Issue Date:
2013
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Electromagnetic equations pertaining to electrically small dipole antennas and electrically small monopole antennas with small circular ground planes are reviewed. Two electrically small antenna designs are analyzed numerically and the results are compared. The first is a frequency agile version of the two-dimensional (2D) planar Egyptian axe dipole (EAD) antenna. The second is its three-dimensional (3D) counterpart. The frequency agile performance characteristics of both the 2D and 3D EAD designs are studied and compared. The potential for non-Foster augmentation to achieve large instantaneous fractional impedance bandwidths is detailed for each antenna. In addition, details are given on how to run frequency agile simulations in both ANSYS HFSS and Agilent's ADS. Details are also provided on how to generate an antenna's non-Foster |S₁₁| and radiation efficiency curves using HFSS, and how to generate an antenna's non-Foster |S₁₁| curve using ADS.
Type:
text; Electronic Thesis
Keywords:
bandwidth; frequency agile; HFSS; non-Foster; radiation; Electrical & Computer Engineering; antenna
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Electrical & Computer Engineering
Degree Grantor:
University of Arizona
Advisor:
Ziolkowski, Richard W.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleAchieving Wide Bandwidth Electrically Small Antennas Using Internal Non-Foster Elementsen_US
dc.creatorCutshall, Ryan Thomasen_US
dc.contributor.authorCutshall, Ryan Thomasen_US
dc.date.issued2013-
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractElectromagnetic equations pertaining to electrically small dipole antennas and electrically small monopole antennas with small circular ground planes are reviewed. Two electrically small antenna designs are analyzed numerically and the results are compared. The first is a frequency agile version of the two-dimensional (2D) planar Egyptian axe dipole (EAD) antenna. The second is its three-dimensional (3D) counterpart. The frequency agile performance characteristics of both the 2D and 3D EAD designs are studied and compared. The potential for non-Foster augmentation to achieve large instantaneous fractional impedance bandwidths is detailed for each antenna. In addition, details are given on how to run frequency agile simulations in both ANSYS HFSS and Agilent's ADS. Details are also provided on how to generate an antenna's non-Foster |S₁₁| and radiation efficiency curves using HFSS, and how to generate an antenna's non-Foster |S₁₁| curve using ADS.en_US
dc.typetexten_US
dc.typeElectronic Thesisen_US
dc.subjectbandwidthen_US
dc.subjectfrequency agileen_US
dc.subjectHFSSen_US
dc.subjectnon-Fosteren_US
dc.subjectradiationen_US
dc.subjectElectrical & Computer Engineeringen_US
dc.subjectantennaen_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineElectrical & Computer Engineeringen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorZiolkowski, Richard W.en_US
dc.contributor.committeememberDvorak, Steven L.en_US
dc.contributor.committeememberXin, Haoen_US
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