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Miniaturized band‐pass filter for broadband applications
Author(s) -
Karim M. F.,
Liu A.Q.,
Ong L. C.,
Guo YongXin
Publication year - 2010
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.25177
Subject(s) - broadband , band pass filter , electronic engineering , bandwidth (computing) , insertion loss , microwave , m derived filter , filter (signal processing) , high pass filter , engineering , materials science , optoelectronics , low pass filter , electrical engineering , telecommunications
This article reports a new compact design of band‐pass filter for broadband applications. It has a compact design with two bended short stubs of quarter‐wavelength and a connecting stub of half‐wavelength, which result in the design of a broadband filter. The filter is fabricated on silicon substrate using surface micromachining process. The fractional bandwidth of band‐pass filter reported is around 0.9–4 GHz. The rejection at upper and lower pass band edge is greater than 35 dB, and the insertion loss is 2.4 dB. The area of the novel filter is (λ g /4) 2 at the centre frequency of the bandpass, whereas the area of the filter realized using the nonbending stubs and connecting lines is 2(λ g /4) 2 for the same band pass characteristics. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1372–1375, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25177