Ultra-wide band microwave filter utilizing quarter-wavelength short-circuited stubs

  1. Mohammad Shahrazel Razalli1,2,
  2. Alyani Ismail1,*,
  3. Mohd Adzir Mahdi1,
  4. Mohd Nizar Hamidon3

Article first published online: 30 AUG 2008

DOI: 10.1002/mop.23830

Issue

Microwave and Optical Technology Letters

Microwave and Optical Technology Letters

Volume 50, Issue 11, pages 2981–2983, November 2008

Additional Information

How to Cite

Shahrazel Razalli, M., Ismail, A., Adzir Mahdi, M. and Nizar Hamidon, M. (2008), Ultra-wide band microwave filter utilizing quarter-wavelength short-circuited stubs. Microw. Opt. Technol. Lett., 50: 2981–2983. doi: 10.1002/mop.23830

Author Information

  1. 1

    Department of Computer and Communication Systems Engineering, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia

  2. 2

    School of Computer and Communication Engineering, Universiti Malaysia Perlis, P.O. Box 77, Pejabat Pos Besar, Kangar, Perlis 01007, Malaysia

  3. 3

    Faculty of Engineering, Department of Electric and Electronic Engineering, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia

*Department of Computer and Communication Systems Engineering, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia

Publication History

  1. Issue published online: 30 AUG 2008
  2. Article first published online: 30 AUG 2008
  3. Manuscript Received: 3 MAR 2008

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Keywords:

  • microwave filter;
  • UWB;
  • microstrip;
  • quarter wavelength;
  • short-circuited stubs

Abstract

Five poles quarter-wave short-circuited stubs is designed and developed to support the ultra-wide band (UWB) applications. The filter, with a total size of 41 mm × 12 mm operates within 2.7–9.83 GHz, produces a fractional bandwidth of greater than 100%. The filter is fabricated on RT/Duroid 5880 board with thickness of 0.508 mm. Measured results indicate that the filter, consisting of five short-circuited stubs, and a stepped impedance transmission line can cover up to 114% bandwidth within UWB frequency range with insertion loss (S21) better than 1.27 dB. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2981–2983, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23830

Get PDF (183K)