Title page for ETD etd-122209-100909

Document Type thesis

Author Name Samant, Gajanan Balkrishna

URN etd-122209-100909

Title Verification of the “Energy Accumulation in Waves Travelling through a Checkerboard Dielectric Material Structure in Space-time” Using Spice Simulations

Degree MS

Department Electrical & Computer Engineering

Advisors
Prof. Konstantin A. Lurie, Advisor
Prof. Reinhold Ludwig, Advisor
Prof. Suzanne L. Weekes, Committee Member

Keywords
Dynamic materials
spatio-temporal composites
checkerboard
Spice simulations

Date of Presentation/Defense 2009-12-16

Availability restricted

Abstract
Recently, there has been some good interest in the field of Dynamic Materials, also referred to as Spatio-Temporal Composites. These materials have been theoretically attributed to show ability to switch their electromagnetic properties in time, as contrast to the spatial variations shown by regular materials of non-dynamic nature, existing naturally. Though there is no exhibition of dynamic material in nature yet, there are suggestions for its synthesis. This paper follows the idea of using standard lossless transmission line model approximating a material substance. Such a material though not truly homogeneous, could be made to vary its properties in time. The aim of this work is to test this idea for its functional efficiency in comparison to analytical results obtained from earlier works on the subject. We make use of Spice simulation for this.
An important aspect of this work is to facilitate the dynamic operations in a static environment. Almost all the simulators available today like Spice, ADS, etc intrinsically provide no ability for parameter variations in time. Nonetheless, we make use of certain popular tricks to implement circuits imitating the dynamic circuit components we need. Such implementations are separately tested to demonstrate their success in providing us with the dynamic environment we desire. Finally, within the limitations of the computing capabilities, we could successfully show an agreement between the results obtained and the existing theory.

Files
GSamant.pdf
Tx_line_4.asc
Tx_line_4d_half.asc
VariableC.zip
VariableL.zip
variableLC2.zip
indicates that a file or directory is accessible from the WPI campus network only.

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Document Type	thesis
Author Name	Samant, Gajanan Balkrishna
URN	etd-122209-100909
Title	Verification of the “Energy Accumulation in Waves Travelling through a Checkerboard Dielectric Material Structure in Space-time” Using Spice Simulations
Degree	MS
Department	Electrical & Computer Engineering
Advisors	Prof. Konstantin A. Lurie, Advisor Prof. Reinhold Ludwig, Advisor Prof. Suzanne L. Weekes, Committee Member
Keywords	Dynamic materials spatio-temporal composites checkerboard Spice simulations
Date of Presentation/Defense	2009-12-16
Availability	restricted
Abstract Recently, there has been some good interest in the field of Dynamic Materials, also referred to as Spatio-Temporal Composites. These materials have been theoretically attributed to show ability to switch their electromagnetic properties in time, as contrast to the spatial variations shown by regular materials of non-dynamic nature, existing naturally. Though there is no exhibition of dynamic material in nature yet, there are suggestions for its synthesis. This paper follows the idea of using standard lossless transmission line model approximating a material substance. Such a material though not truly homogeneous, could be made to vary its properties in time. The aim of this work is to test this idea for its functional efficiency in comparison to analytical results obtained from earlier works on the subject. We make use of Spice simulation for this. An important aspect of this work is to facilitate the dynamic operations in a static environment. Almost all the simulators available today like Spice, ADS, etc intrinsically provide no ability for parameter variations in time. Nonetheless, we make use of certain popular tricks to implement circuits imitating the dynamic circuit components we need. Such implementations are separately tested to demonstrate their success in providing us with the dynamic environment we desire. Finally, within the limitations of the computing capabilities, we could successfully show an agreement between the results obtained and the existing theory.
Files	GSamant.pdf Tx_line_4.asc Tx_line_4d_half.asc VariableC.zip VariableL.zip variableLC2.zip indicates that a file or directory is accessible from the WPI campus network only.