Honors Theses
Date of Award
Spring 5-12-2023
Document Type
Undergraduate Thesis
Department
Electrical Engineering
First Advisor
Alexander Yakovlev
Second Advisor
Richard Gordon
Third Advisor
Ramanarayanan Viswanathan
Relational Format
Dissertation/Thesis
Abstract
The concept of cloaking has been prevalent in emerging research, being able to hide oneself completely from outside observers would be a huge benefit for covert surveillance and other fields. This idea has expanded past optical invisibility into the field of electromagnetic invisibility. To accomplish this form of cloaking, a non-natural material, called metamaterials, must be used. Furthermore, metamaterials can be used in a variety of different techniques including transformation-based cloaking, transmission line cloaking, and scattering cancellation cloaking. One application of cloaking is to use scattering cancellation to decouple two antennas that are placed too closely together such as in Shefali Pawar’s “Cloaking of Slot Antennas at C-Band Frequencies Using Elliptical Metasurface Cloaks". Pawar's results were recreated and the new results were compared to the original findings. Through the use of elliptical metasurface cloaks, antennas operating at 4.5 and 5.5 GHz were decoupled in both the near-field and far-field while also achieving a high total efficiency. This concept was depicted showing the isolated 4.5 GHz and 5.5 GHz antennas, the deterioration of the coupled uncloaked case, and the restoration of those proprieties for the decoupled cloaked case. Then, this idea was then further expanded upon by adding the design to a 4x1 array of antennas and shown to work for beam scanning.
Recommended Citation
Ferro, Daniel, "The Use of Scattering Cancellation to Cloak and Decouple Slot Antennas and Antenna Arrays" (2023). Honors Theses. 2868.
https://egrove.olemiss.edu/hon_thesis/2868
Accessibility Status
Searchable text
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.