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

✍ Scribed by Mohammad Shahrazel Razalli; Alyani Ismail; Mohd Adzir Mahdi; Mohd Nizar Hamidon

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 183 KB
Volume: 50
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.23830

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✦ Synopsis

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

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