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Cantor fractal-based printed slot antenna for dual-band wireless applications

Published online by Cambridge University Press:  08 December 2014

Jawad Ali*
Affiliation:
Microwave Research Group, Department of Electrical Engineering, University of Technology, Assinaa Street, 10001 Baghdad, Iraq. Phone: + 9647813929312
Seevan Abdulkareem
Affiliation:
Microwave Research Group, Department of Electrical Engineering, University of Technology, Assinaa Street, 10001 Baghdad, Iraq. Phone: + 9647813929312
Ali Hammoodi
Affiliation:
Systems Engineering Department, University of Arkansas at Little Rock, Little Rock, Arkansas, USA
Ali Salim
Affiliation:
Microwave Research Group, Department of Electrical Engineering, University of Technology, Assinaa Street, 10001 Baghdad, Iraq. Phone: + 9647813929312
Mahmood Yassen
Affiliation:
Microwave Research Group, Department of Electrical Engineering, University of Technology, Assinaa Street, 10001 Baghdad, Iraq. Phone: + 9647813929312
Mohammed Hussan
Affiliation:
Microwave Research Group, Department of Electrical Engineering, University of Technology, Assinaa Street, 10001 Baghdad, Iraq. Phone: + 9647813929312
Hussain Al-Rizzo
Affiliation:
Systems Engineering Department, University of Arkansas at Little Rock, Little Rock, Arkansas, USA
*
Corresponding author: Jawad K. Ali Email: jawadkali@uotechnology.edu.iq

Abstract

Fractal geometries are attractive for antenna designers seeking antennas with compact size and multiband resonant behavior. This paper presents the design of a new microstrip-fed printed slot antenna for use in dual-band wireless applications. The slot structure of the proposed antenna is in the form of Cantor square fractal geometry of the second iteration. The slot structure has been etched on the ground plane of a substrate with relative permittivity of 4.4 and 1.6 mm in thickness. A parametric study is conducted to explore the effects of some geometrical parameters on the antenna performance. Results show that the antenna possesses a dual-band behavior with a wide range of resonant frequency ratio. In addition to the ease of fabrication and simple design procedure, the antenna offers desirable radiation characteristics. A prototype of the proposed antenna has been simulated, fabricated, and measured. The measured 10 dB return loss bandwidths for the lower and the upper resonant bands are 42% (2.35–3.61 GHz) and 20% (5.15–6.25 GHz), respectively. This makes the proposed antenna suitable to cover a number of operating bands of wireless systems (2.4 GHz-Bluetooth, 2.4 GHz ISM, 2.4/5.8 GHz-WLAN, 3.5 GHz-WiMAX, and 5.8 GHz-ITS).

Type
Research Paper
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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