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Presentation
A New Tunable Dual-mode Bandpass Filter Design Based on Fractally Slotted Microstrip Patch Resonator
Progress In Electromagnetics Research Symposium, Kuala Lumpur, Malaysia (2012)
  • Jawad K. Ali, Department of Electrical Engineering, University of Technology, Iraq
  • Nasr N Hussain, Department of Electrical Engineering, University of Technology, Iraq
  • Ali J Salim, Department of Electrical Engineering, University of Technology, Iraq
  • Hussam Alsaedi, Department of Electrical Engineering, University of Technology, Iraq
Abstract
A dual-mode slotted microstrip patch resonator is introduced in this paper for use
in wireless communication applications. The slot structure, etched inside the patch resonator, is
in the form of the 2nd iteration Koch fractal curve; using the conventional square microstrip patch
resonator as the initiator. Modeling and performance evaluation of the proposed filter design have
been carried out using a method of moment based EM simulator, IE3D. Simulation results show
that the resulting resonator filter has good transmission and return loss responses. The modeled
resonator has been found to possess a side length of about 0.22 the guided wavelength, which
represents a size reduction of about 81% as compared with that based on the conventional square
microstrip patch without slot. In addition, slits have been symmetrically etched in the external
edges of the patch structure, in an attempt to provide the resonator with tuning facility. Besides
the tuning possibility, these slits have been found to offer further size reduction without worsening
the resulting filter performance; providing the designer with more degrees of freedom.
Publication Date
March 27, 2012
Citation Information
Jawad K. Ali, Nasr N Hussain, Ali J Salim and Hussam Alsaedi. "A New Tunable Dual-mode Bandpass Filter Design Based on Fractally Slotted Microstrip Patch Resonator" Progress In Electromagnetics Research Symposium, Kuala Lumpur, Malaysia (2012)
Available at: http://works.bepress.com/jawad_ali/20/