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Article
A New Narrow Band Dual-Mode Miniaturized Bandpass Filter Design for Wireless Communication Systems
Engineering and Technology Journal (2009)
  • Nasr N Hussain, Department of Electrical Engineering, University of Technology, Iraq
  • Jawad K. Ali, Department of Electrical Engineering, University of Technology, Iraq
Abstract
A new narrowband, compact, and low profile microstrip filter design is
presented in this paper as a candidate for use in modern wireless systems. The
proposed design is based on the use of fractal multiple ring resonator. Multiple
ring resonators have advantages to possess much narrower and shaper
performance responses than those of the single ring resonator. The proposed filter
design is fractally generated using Minkowski-Like Pre-Fractal curve geometry
applied to the conventional square microstrip square ring filter. Filter structures
resulting from the successive iterations in the fractal generation process show a
considerable size reduction compared with the conventional microstrip square
ring filter designed at the same frequency using the same substrate material. The
performance of the generated bandpass filter structures have been analyzed using
method of moments (MoM) based software package Microwave Office 2007.
Performance Simulation results show that filter structures employing 2nd and 3rd
iterations offer size reduction percentages of about 61.5% and 77.7% respectively
as compared with the conventional square ring filter.
Keywords
  • Dual-Mode ring resonator,
  • narrowband filter,
  • fractal filter,
  • microwave bandpass filter
Publication Date
2009
Citation Information
Nasr N Hussain and Jawad K. Ali. "A New Narrow Band Dual-Mode Miniaturized Bandpass Filter Design for Wireless Communication Systems" Engineering and Technology Journal Vol. 27 Iss. 10 (2009) p. 1937 - 1951
Available at: http://works.bepress.com/jawad_ali/43/