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On the relationship among dual‐mode double‐ring and double slot‐ring resonators for wide band‐pass filter design
Author(s) -
Lu ShuhTai,
Deng PingChun,
Liu JiChyun,
Wu TaiI
Publication year - 2008
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.22998
Subject(s) - resonator , microwave , multi band device , dual mode , ring (chemistry) , physics , insertion loss , electronic engineering , electrical engineering , topology (electrical circuits) , engineering , optics , telecommunications , chemistry , organic chemistry , antenna (radio)
The novel configurations of dual‐mode double slot‐ring resonator (DMDSRR) are introduced to improve the performance of the dual‐mode double‐ring resonator (DMDRR). To obtain a lower insertion loss (−0.76 dB) higher rejection (−48.21 dB) and wider band (BW about 93.35%) filters using tree‐shaped couples and perturbation stubs are proposed here. Both cascaded DMDSRR structure and Butterworth approximation are studied herein. Simulation results including surface current distributions and frequency responses are presented and discussed. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 117–122, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22998