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Unpublished Paper
A Fractal-based Dual-mode Microstrip Bandstop Filter for Wireless Applications
Technical Report MRG 2-2016, Microwave Research Group, University of Technology, Iraq (2016)
  • Hayder S. Ahmed, Department of Electrical Engineering, University of Technology, Iraq
  • Ali J. Salim, Department of Electrical Engineering, University of Technology, Iraq
  • Jawad K. Ali, Department of Electrical Engineering, University of Technology, Iraq
  • Mushtaq A. Alqaisy, Department of Electronics and Communication Engineering, College of Engineering, Universiti Tenaga Nasional, Selangor, Malaysia
Abstract
Bandstop filters (BSFs) are highly required in modern wireless communication and
electromagnetic compatibility related applications. In this paper, a fractal based dual-mode
microstrip BSF has been proposed as a compact resonator structure with high selectivity. Filter
miniaturization results from the application of Minkowski fractal geometry on the conventional
triangle dual-mode resonator. Performance evaluation of the proposed filter design has been
performed using the commercially available EM simulator; Sonnet. Parametric study reveals that
the application of Minkowski fractal geometry results in BSFs offering both a compact size and
high selectivity stopband responses. The results show that the proposed BSF over performs those
reported in the literature in both the size reduction and the realized selectivity.
Publication Date
January 29, 2016
Citation Information
Hayder S. Ahmed, Ali J. Salim, Jawad K. Ali and Mushtaq Alqaisy, Fractal-based Dual-mode Microstrip Bandstop Filter for Wireless Applications, Technical Report MRG 2-2016, Microwave Research Group, Department of Electrical Engineering, University of Technology, Iraq, January 29, 2016.