Premium
Novel topology of compact coplanar waveguide resonant cell low‐pass filter
Author(s) -
Kurgan P.,
Bekasiewicz A.,
Pietras M.,
Kitlinski M.
Publication year - 2012
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.26594
Subject(s) - passband , coplanar waveguide , microwave , ground plane , return loss , transition band , topology (electrical circuits) , band pass filter , filter (signal processing) , physics , low pass filter , waveguide , materials science , optics , optoelectronics , engineering , electrical engineering , prototype filter , telecommunications , antenna (radio)
In this study, a novel pseudoelliptic function low‐pass filter (LPF) constituted by a compact coplanar waveguide resonant cell has been designed and manufactured. The lumped‐element seven‐pole prototype has been adequately realized by using complementary perturbations located both in signal line and ground plane metallization. The fabricated uniplanar LPF offers a compact size of 5.6 × 9.8 mm 2 , return loss better than −26 dB over the passband, stop‐band rejection better than 27 dB up to 8 GHz and a narrow transition band. The experimental results are in agreement with theoretical characteristics. The solution proposed is superior to the classic semilumped element counterpart in the level of length reduction (67% of abbreviation). © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:732–735, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26594