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Synthesis Design of Dual-Band Differential Phase Shifters with Independent Filtering Passbands and Predetermined Phase Shifts
Lei-Lei Qiu1; Lei Zhu2
2021-02-02
Source PublicationIEEE Transactions on Industrial Electronics
ISSN0278-0046
Abstract

This paper proposes the synthesis design method of the dual-band differential phase shifters with independent filtering passbands and predetermined phase shifts. The filtering unit of the proposed phase shifter adopts a simple branch-line structure, which possesses its characteristics of controllable dual-band frequency ratios and bandwidths. Meanwhile, the Schiffman phase alignment element holds the capability in achieving different predetermined phase shifts in dual-band. In our design, dual-mode resonator and dual-mode J-inverter models for the filtering units are equivalently established, and the amplitude and phase closed-form formulas for the proposed dual-band phase shifter are further numerically obtained for the first time. This proposed work features new synthesis method, integrated higher-order filtering response with two independently prescribed bandwidths, and concurrent predetermined dual-band phase shifts. Design procedures are provided in detail for a quick design. Finally, two dual-band phase shifters with different frequency ratios and phase shifts are designed and demonstrated. The experimental and measured results match well.

KeywordFiltering Dual Band Passband Phase Shifters Resonant Frequency Impedance Topology Differential Phase Shifter Dual-band Filtering Passband Synthesis Design
DOI10.1109/TIE.2021.3055182
URLView the original
Scopus ID2-s2.0-85100813138
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, 59193 Taipa, Macau SAR, China, 999078 (e-mail: yb87440@connect.um.edu.mo)
2.University of Macau, Macau SAR, Chin
First Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Lei-Lei Qiu,Lei Zhu. Synthesis Design of Dual-Band Differential Phase Shifters with Independent Filtering Passbands and Predetermined Phase Shifts[J]. IEEE Transactions on Industrial Electronics,2021.
APA Lei-Lei Qiu,&Lei Zhu.(2021).Synthesis Design of Dual-Band Differential Phase Shifters with Independent Filtering Passbands and Predetermined Phase Shifts.IEEE Transactions on Industrial Electronics.
MLA Lei-Lei Qiu,et al."Synthesis Design of Dual-Band Differential Phase Shifters with Independent Filtering Passbands and Predetermined Phase Shifts".IEEE Transactions on Industrial Electronics (2021).
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