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Compact band pass filter with controllable bandwidth based on low radiation spur‐line defected ground structure
Author(s) -
Zhou Xin Yu,
Zheng Shao Yong,
Chan Wing Shing,
Ho Derek
Publication year - 2016
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.30193
Subject(s) - bandwidth (computing) , microwave , resonator , radiation , fractional bandwidth , optoelectronics , split ring resonator , insertion loss , filter (signal processing) , ranging , materials science , electronic engineering , physics , optics , engineering , electrical engineering , telecommunications
Radiation loss is a major problem of defected ground structures (DGSs) in past decades. This paper presents a novel band pass filter (BPF) employing low radiation spur‐line DGS (S‐LDGS) resonators and a split ring resonator (SRR). This combination results in compact size and significant reduction in radiation loss. The proposed BPF achieves controllable fractional bandwidth, ranging from 36.2% to 46.5% centered at 2.6 GHz, which covers two Wi‐MAX bands. The proposal is verified with a prototype that demonstrates good agreement between simulations and measurements. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2966–2968, 2016
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