Multiband Fractal-Like Antennas

Abstract

Abstract-In this paper, new multiband fractal-like antennas are proposed. The proposed multiband antenna design is based on a methodology that utilizes the self transformation principle of fractallike rectangular profiles to generate multiband operation.The proposed monopole-type antennas are built on a partial ground plane and fed through a microstrip feed line. The analytical design procedures are straightforward and can be applied to any practical antenna structure to operate at multiple preselected bands. The developed methodology has been used to design antennas operating at three, four, and five preselected practical bands. Numerical simulations are utilized to verify the simple design procedures of the proposed multiband antenna structures. The triple-band and the quadband structures have been realized on FR4 substrate to prove the concept. Simulation and experimental results are in good agreement and demonstrate the performance of the design methodology and the proposed antenna structures.

Design of dual band textile antenna for ISM bands using fractal geometry

“…Therefore, modified monopo requiring less physical size and greater effic in [8].In the previous work related to antenn only standard multiple isosceles triangles ar the replication purpose [9]. In this paper, aut dual band antenna design for Sierpinski Ga which he has simply replicated the bas monopole resulting into the dual band natur in our proposed design we have used a generate dual band operation at both 2.45 G In paper [10], researchers have suggested (1) e, c is the velocity h which is the sum Bowtie monopole d on log scale with e factor ratio (2) (2) the height of the f the triangle after be a combination with each other as replication is used which a complex main shape. The y the number of generated slots in r of the operating only one iteration e antenna.…”

Analysis of Nonlinear Fractal Optical Antenna Arrays - A Conceptual Approach

“…In other words, this may be conveniently considered as an array of arrays. Some recent research on Sierpinski carpet arrays, multiband arrays, fractal ultra-wideband arrays, super wideband antennas gives promising and excellent results for the application of fractal concept in antenna arrays [11][12][13][14][15][16]. The different types of fractal antenna arrays include cantor recipe set for linear fractal antenna array, planar Sierpinski carpet array, triangular, square and hexagonal antenna arrays.…”

Miniature size multiband planar patch antenna fabricated on a bioplastic substrate

“…Reviewing recently published literatures have suggested numerous approaches to realize more than one frequency band out of a single antenna module. As, for example, introducing artificial magnetic conductor [8], implementing fractal structures [9], cutting slots of different shapes and sizes on the radiating patch [10,11], constructing electromagnetic bandgap (EBG) structure [12], adding stubs or parasitic elements [13], feeding through coplanar waveguide [14], using defected/reformed ground plane [15] and so on. The air exposure of the substrate by etching out the part of copper layer is an efficient and easy to apply technique in the design and fabrication process.…”