Experimental Study of 2-D Electrochemicallydeposited Random Fractal Monopole Antennas

Abstract

Abstract-Two 2-D natural fractal monopoles generated by electrodeposition are characterized in term of measured return loss. Depending on their different shapes, previously reported multiband behaviour and new ultra-wideband (UWB) characteristics are obtained. Finally, sufficient efficiencies are measured for both antennas proving their possible use as radiating element.

CPW-fed H-tree fractal antenna for WLAN, WIMAX, RFID, C-band, HiperLAN, and UWB applications

“…He demonstrated that by increasing the number of iterations we can have miniaturized antennas with more resonance frequencies, an ultra wideband behavior, good efficiency, and better matching [31]. In 2013, DUMOND studied experimentally the Random 2D-Tree fractal antennas and he demonstrated that with this kind of structures, we can have antennas with good performances, multi-band and UWB behavior [32]. Also, NASER-MOGHADASI has introduced a miniaturized Tree fractal structure operational for all the UWB applications, he also set up parasite elements in order to eliminate some frequencies bands [33].…”

Fractal Antennas : A Novel Miniaturization Technique for wireless Networks

“…The figure 32 shows the proposed structure, its return loss, and its gain versus the frequency. In 2013, DUMOND studied experimentally the Random 2D-TREE fractal antennas and he demonstrated that with this kind of structures, we can have antennas with good performances, multi-band and UWB behavior [63]. Also, NASER-MOGHADASI, has introduced a miniaturized TREE fractal structure operational for all the UWB applications, he set up also parasite elements in order to eliminate some frequencies bands [64].…”

Design of a chipless RFID tags based on natural fractal geometries for security applications

“…Deterministic structures , for which the self similarity property can be described easily by a scaling power law, were widely studied in the last decades, and much deterministic geometry have proved to enhance the antenna performances: Sierpinski monopole for multifrequency operation , Koch monopole for miniaturization , Koch island patch for high directivity , and so forth. Conversely, random/irregular fractal antennas, which require more complex mathematical laws to be represented, are still largely unknown and their applications are few . Among these rare studies, we mention here some examples.…”

“…The electrochemistry technique was applied to obtain two‐dimensional (2D) and three‐dimensional (3D) irregular fractal antennas characterized by multiband and wideband behaviors which may permit their use in wireless multifrequency and broadband telecommunications. The 2D‐antenna was proposed for UWB applications, and the 3D‐structure for concealment and detection (CC&D).…”