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Design of Wideband Bandpass Filter with Simultaneous Bandwidth and Notch Tuning Based on Dual Cross-Shaped Resonator
CHENG TENG1; Pedro Cheong1,2; SUT-KAM HO1; KAM-WENG TAM1; WAI-WA CHOI1
2020-02-03
Source PublicationIEEE Access
ISSN2169-3536
Volume8Pages:27038-27046
Abstract

In this paper, a wideband bandpass filter (BPF) with simultaneous bandwidth and notch tuning is proposed, by using a dual cross-shaped resonator (DCSR) with parallel-coupled three-line (PCTL) feeding. It is found that three intrinsic transmission zeros can be generated by the proposed DCSR, while two of the zeros are used for the implementation of passband edge zeros and the other one is for a notch. Three varactors are used to implement the bandwidth and notch tuning independently. These innovative integrated functions of both tunable bandwidth and notch in a single architecture are proposed for the first time. On the other hand, the PCTL can provide sufficiently strong coupling in the desired passband. The proposed BPF can achieve the bandwidth tuning with a fixed notch inside/outside the passband, and the bandwidth can also be kept unchanged when tuning a notch within the passband. The prototyped BPF centered at 6 GHz reports that the absolute bandwidth (ABW) can be varied from 2.5 to 5.8 GHz, while the fractional bandwidth (FBW) is tuned from 41.7% to 96.7% together with notch frequency tuning of 5.0 to 8.2 GHz. The experimental measurements are in good agreement with the theoretical analysis.

KeywordBAndwidth And Notch Tuning Dual Cross-shaped Resonator (Dcsr) Microstrip Wideband Bandpass Filters Tunable Filters
DOI10.1109/ACCESS.2020.2971028
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaComputer Science ; Engineering ; Telecommunications
WOS SubjectComputer Science, Information Systems ; Engineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000525466900043
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141
Scopus ID2-s2.0-85081104507
Fulltext Access
Citation statistics
Cited Times [WOS]:3   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Faculty of Science and Technology
Affiliation1.Faculty of Science and Technology,University of Macau,999078,Macao
2.Poly-Grames Research Center,Department of Electrical Engineering,Ecole Polytechnique de Montreal,Montreal,H3T 1J4,Canada
First Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
CHENG TENG,Pedro Cheong,SUT-KAM HO,et al. Design of Wideband Bandpass Filter with Simultaneous Bandwidth and Notch Tuning Based on Dual Cross-Shaped Resonator[J]. IEEE Access,2020,8:27038-27046.
APA CHENG TENG,Pedro Cheong,SUT-KAM HO,KAM-WENG TAM,&WAI-WA CHOI.(2020).Design of Wideband Bandpass Filter with Simultaneous Bandwidth and Notch Tuning Based on Dual Cross-Shaped Resonator.IEEE Access,8,27038-27046.
MLA CHENG TENG,et al."Design of Wideband Bandpass Filter with Simultaneous Bandwidth and Notch Tuning Based on Dual Cross-Shaped Resonator".IEEE Access 8(2020):27038-27046.
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