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Design of ultra-wideband bandpass filters with fixed and reconfigurable notch bands using terminated cross-shaped resonators
Wang H.1; Tam K.-W.1; Ho S.-K.1; Kang W.2; Wu W.2
2014
Source PublicationIEEE Transactions on Microwave Theory and Techniques
ISSN189480
Volume62Issue:2Pages:252
Abstract

In this paper, a novel terminated cross-shaped resonator (TCSR) is analyzed and used to design ultra-wideband (UWB) bandpass filters (BPFs) with fixed and reconfigurable notch bands. It is found that the TCSR can exhibit a maximum three poles and two zeros when open and short terminations are applied. The intrinsic zero is simply used for the implementation of notch bands offering systematic design and flexible tuning capabilities. Bandwidth can also be kept unchanged when tuning a notch within the UWB passband. In contrast to common band-notched UWB BPFs using additional notch resonators, only a single TCSR is required to realize band-notched UWB filters. Three UWB BPF prototypes, including a four-pole filter with 94.7% fractional bandwidth (FBW) and a notch band at 5.8 GHz, a five-pole filter with 111% FBW and dual notch bands at 4.3/9.1 GHz, and a four-pole filter with 82.4% FBW and reconfigurable notch band from 4.6 to 6.5 GHz are designed and experimentally characterized. Their experimental characterizations are in good agreement with theoretical analysis validating a simple approach of band-notched UWB BPF design. © 2014 IEEE.

KeywordNotch Bands Terminated Cross-shaped Resonator (Tcsr) Transmission Zeros And Poles Ultra-wideband (Uwb) Bandpass Filter (Bpf)
DOI10.1109/TMTT.2013.2296530
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000331446700006
The Source to ArticleScopus
Fulltext Access
Citation statistics
Cited Times [WOS]:40   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.Univ Macau, Fac Sci & Technol, Taipa 999078, Peoples R China
2.Nanjing Univ Sci & Technol, JGMT, Ministerial Key Lab, Nanjing 210094, Jiangsu, Peoples R China
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Wang H.,Tam K.-W.,Ho S.-K.,et al. Design of ultra-wideband bandpass filters with fixed and reconfigurable notch bands using terminated cross-shaped resonators[J]. IEEE Transactions on Microwave Theory and Techniques,2014,62(2):252.
APA Wang H.,Tam K.-W.,Ho S.-K.,Kang W.,&Wu W..(2014).Design of ultra-wideband bandpass filters with fixed and reconfigurable notch bands using terminated cross-shaped resonators.IEEE Transactions on Microwave Theory and Techniques,62(2),252.
MLA Wang H.,et al."Design of ultra-wideband bandpass filters with fixed and reconfigurable notch bands using terminated cross-shaped resonators".IEEE Transactions on Microwave Theory and Techniques 62.2(2014):252.
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