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Cross‐coupled Hilbert spiral resonator for bandpass filter design
Author(s) -
Liu JiChyun,
Lu PoChiang,
Chien ChiHsun,
Chang JunMao,
Chen JongYih,
Lin HorngJyh
Publication year - 2007
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.22630
Subject(s) - resonator , spiral (railway) , microwave , coupling coefficient of resonators , band pass filter , filter (signal processing) , acoustics , insertion loss , coupling (piping) , physics , electronic engineering , optics , engineering , electrical engineering , computational physics , telecommunications , mechanical engineering
The modified cross‐coupled spiral resonators with Hilbert configuration are introduced for a large coupling coefficient in this article. For comparison, the conventional cross‐coupled spiral resonators are fabricated and measured herein. To obtain low insertion loss (−0.27 dB), high out‐of‐band rejection level (−19.5 dB) and wider FBW (50.9%), the filter of simplified CCSR‐H is proposed. Results included surface current distribution and frequency responses are presented and discussed. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1890–1894, 2007; Published online in Wiley Inter‐Science (www.interscience.wiley.com). DOI 10.1002/mop.22630