Fibonacci Fractal Tree Antennas
by
 
Özbakış, Başak.

Title
Fibonacci Fractal Tree Antennas

Author
Özbakış, Başak.

Personal Author
Özbakış, Başak.

Publication Information
[s.l.]: [s.n.], 2004.

Physical Description
x, 55 leaves.: ill.+ 1 computer laser optical disc.

Abstract
Fractal geometry is first defined by Benoit Mandelbrot. A fractal structure is generated with an iterative procedure of a simple initiator by replicating many times at different scales, positions and directions. Fractal structures generated with this method are generally self-similar and the dimensions of these structures cannot be defined with integers. Koch, Minkowski and Sierpinski structures are the most known fractal structures. These structures are commonly used as multiband and wideband antenna designs because of the self-similarity. Furthermore, their special geometry is useful to obtain small antennas which are resonant at lower frequencies. Lowering the resonant frequency has the same effect as miniaturizing the antenna at a fixed resonant frequency. Other important and interesting fractal structures used in antenna designs are the various types of the fractal trees. However, in recent studies the branch length ratios of the fractal tree antennas are taken constant. In this study fractal tree antennas with nonuniform branch length ratios are investigated. By changing the geometry and number of branches of the fractal tree structures the antenna characteristics are examined. The branch lengths and number of branches of the fractal tree antennas are determined by using the Fibonacci sequence. Leonardo Fibonacci (1170 - 1240), a famous Italian mathematician, dealt with geometry and developed a number sequence while observing the nature. Fractal tree antennas are designed with two different geometries in order to improve the resonance behavior of the antennas. The number of branches is decreased, so that less complex fractal tree antennas with the similar performance can be obtained.

Subject Term
Antennas (Electronics)
 
Fractals

Added Author
Kuştepeli, Alp

Added Corporate Author
İzmir Institute of Technology. Electronics and Communication Engineering.

Added Uniform Title
Thesis (Master)--İzmir Institute of Technology: Electronics and Communication Engineering.
 
İzmir Institute of Technology: Electronics and Communication Engineering--Thesis (Master).

Electronic Access
Access to Electronic Version.


LibraryMaterial TypeItem BarcodeShelf NumberStatus
IYTE LibraryThesisT000455TK7871.6.O99 2004 C.1Tez Koleksiyonu
IYTE LibrarySupplementary CD-ROMROM0346TK7871.6.O99 2004 EK1Tez Koleksiyonu