Compact band pass filter with controllable bandwidth based on low radiation spur‐line defected ground structure. Issue 12 (22nd September 2016)

• Record Type: Journal Article
• Authors: Zhou, Xin Yu; Zheng, Shao Yong; Chan, Wing Shing; Ho, Derek
• Is Part Of: Microwave and optical technology letters. Volume 58:Issue 12(2016:Dec.)
• Page Start: 2966
• Page End: 2968
• Publication Date: 2016-09-22
• Subjects: band pass filter -- spur‐line -- low radiation loss -- bandwidth controllable; Microwaves -- Periodicals; Optics -- Periodicals; 621
• DOI: 10.1002/mop.30193
• Languages: English
• ISSNs: 0895-2477

Abstract

ABSTRACT: 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