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Presentation
Design of a Compact Dual-mode Dual-band Microstrip Bandpass Filter Based on Semi-fractal CSRR
Progress In Electromagnetics Research Symposium , Stockholm, Sweden (2013)
  • Mushtaq Alqaisy, Department of Electronics and Communication Engineering, College of Engineering, Universiti Tenaga Nasional, Selangor, Malaysia
  • Jawad K. Ali, Department of Electrical Engineering, University of Technology, Iraq
  • Chandan K Chakrabarty, Department of Electronics and Communication Engineering, College of Engineering, Universiti Tenaga Nasional, Selangor, Malaysia
  • Goh C Hock, Department of Electronics and Communication Engineering, College of Engineering, Universiti Tenaga Nasional, Selangor, Malaysia
Abstract
Various complementary split ring resonators (CSRRs) are used as defected ground
structures (DGSs) in the bandpass filter (BPF) design for different communication applications.
In this paper, a hybrid CSRR has been introduced as a DGS in the ground plane of a dual-mode
microstrip BPF to produce a new compact filter with dual band response. The proposed CSRR
structure is essentially based on the conventional square double ring one, but with the inner ring
made in the form Minkowski-like pre-fractal curve. Simulation and performance evaluation of the
proposed filter have been carried out using a method of moment based EM simulator; the IE3D.
Simulation results show that the resulting filter offers a dual passband response. The higher
passband is attributed to the dual mode microstrip ring structure, while the lower passband is
as a result of the embedded CSRR DGS structure, which implies an extra filter miniaturization.
Results also show that the position of the lower passband could be varied, to certain extent,
without affecting the position of the higher passband. This can be performed by the application
of higher fractal iteration level to the inner split ring and/or dimension scaling of the whole
CSRR structure. This feature makes the proposed filter suitable as a candidate for use in a wide
variety of communication systems incorporating dual band operation.
Publication Date
August 12, 2013
Citation Information
Mushtaq Alqaisy, Jawad K. Ali, Chandan K Chakrabarty and Goh C Hock. "Design of a Compact Dual-mode Dual-band Microstrip Bandpass Filter Based on Semi-fractal CSRR" Progress In Electromagnetics Research Symposium , Stockholm, Sweden (2013)
Available at: http://works.bepress.com/jawad_ali/13/