UM
Design of Wideband Bandpass Filter with Simultaneous Bandwidth and Notch Tuning Based on Dual Cross-Shaped Resonator
Teng,Cheng1; Cheong,Pedro1,2; Ho,Sut Kam1; Tam,Kam Weng1; Choi,Wai Wa1
2020
Source PublicationIEEE Access
Volume8Pages:27038-27046
AbstractIn 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
Language英语
Fulltext Access
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorTeng,Cheng
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
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Teng,Cheng,Cheong,Pedro,Ho,Sut Kam,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 Teng,Cheng,Cheong,Pedro,Ho,Sut Kam,Tam,Kam Weng,&Choi,Wai Wa.(2020).Design of Wideband Bandpass Filter with Simultaneous Bandwidth and Notch Tuning Based on Dual Cross-Shaped Resonator.IEEE Access,8,27038-27046.
MLA Teng,Cheng,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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