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Electromagnetic Properties of Fractal Antennas

Ewing, Jordan Jeffrey
http://rave.ohiolink.edu/etdc/view?acc_num=wright1527788771912581

Abstract Details

2018, Master of Science (MS), Wright State University, Physics.
Finite element method analysis is used to conduct electromagnetic simulations to characterize fractal antennas. This work considers wire (1D) antennas such as the triadic Koch curve, zig zag, and quadratic Koch curve of varying heights, iterations, and cross-sectional areas. Carpet (2D) antennas, including the Sierpinksi carpet, of varying heights, iterations, and deterministic and stochastic iterations are analyzed. The antenna shapes were generated in MATLAB and then modeled with finite element analysis using COMSOL Multiphysics®. The focus of this study is to determine what role various fractal patterns and iterations have on the S11 return loss and far field radiation patterns. Specifically, changes in directionality of the emitted radiation and return loss over a range of frequencies, between 0.2 to 2.2 GHz, are examined. Parameters that are manipulated to assess the influence on antenna performance include varying the fractal generator, varying the number of iterations to make more complex shapes, scaling the antennas, and varying the cross sectional area. Antennas with fractal shapes are shown to have multiple operational bandwidths and exhibit directionality changes with frequency in the far field radiation pattern.
Sarah Tebbens, Ph.D. (Advisor)
Jason Deibel, Ph.D. (Committee Member)
Christopher Barton, Ph.D. (Committee Member)
173 p.
Physics
Fractal; Antenna

Recommended Citations

Citations

  • Ewing, J. J. (2018). Electromagnetic Properties of Fractal Antennas [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1527788771912581

    APA Style (7th edition)

  • Ewing, Jordan. Electromagnetic Properties of Fractal Antennas. 2018. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1527788771912581.

    MLA Style (8th edition)

  • Ewing, Jordan. "Electromagnetic Properties of Fractal Antennas." Master's thesis, Wright State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=wright1527788771912581

    Chicago Manual of Style (17th edition)

wright1527788771912581
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This open access ETD is published by Wright State University and OhioLINK.