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New CPW low‐pass filter based on a slow wave structure
Author(s) -
Martín F.,
Falcone F.,
Bonache J.,
Lopetegi T.,
Laso M. A. G.,
Sorolla M.
Publication year - 2003
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.11011
Subject(s) - microwave , coplanar waveguide , capacitive sensing , cutoff frequency , fabrication , insertion loss , band pass filter , bandwidth (computing) , materials science , capacitive coupling , optoelectronics , engineering , electrical engineering , electronic engineering , telecommunications , medicine , alternative medicine , pathology , voltage
A new periodic loaded coplanar waveguide (CPW) low‐pass filter with very sharp cutoff has been designed and fabricated. The device consists of a CPW structure with T‐shaped periodic patterns on both the central strip and ground planes. With such a design, capacitive coupling is added between the signal strip and ground planes at periodic positions, resulting in a filtering action and slow‐wave effect. In addition to a sharp cutoff, the device exhibits very low insertion loss in the pass band, wide rejection bandwidth, and simple design and fabrication. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 38: 190–193, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11011