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A new compact and wideband quadrature feeding network with an integrated asymmetrical phase shifter
Lyu, Yun Peng1; Li, Bo2; Zhu, Lei3; Cheng, Chong Hu1
2021-03-01
Source PublicationIET Microwaves, Antennas and Propagation
ISSN1751-8725
Volume15Issue:4Pages:397-403
Abstract

This article reports a new class of quadrature feeding network which integrates an asymmetrical phase shifter to obtain the compact size and wideband property simultaneously. By adjusting the impedance of two loading stubs, this asymmetrical phase shifter can realize 90° phase shift, impedance transformation, and phase slope alignment at the same time. Operation principle and design procedure for this introduced quadrature feeding network are provided with synthesis equations and design curves. By using the shape of Archimedes gradual-change lines, the area of this circuit layout is fully utilized, and the overall size of the proposed feeding network is only 0.050λ. Compared with a traditional compact design, this technique can effectively enhance the amplitude balance bandwidth by 1.7 times (from 58% to 101%) and phase balance bandwidth by 5.9 times (from 14% to 83%) as well as keep the circuit size nearly unchanged under the same conditions. To verify the design concept, two prototypes of the quadrature feeding networks are designed, fabricated, and tested. Good agreement between the measured and simulated results is achieved and they well reveal the attractive wideband equal amplitudes and 90° phase balance performance for this proposed new compact quadrature feeding network.

DOI10.1049/mia2.12066
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000625462800001
Scopus ID2-s2.0-85112163016
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Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorLyu, Yun Peng
Affiliation1.College of Telecommunications and Information Engineering, Nanjing University of Posts and Tele-communications, Nanjing, China
2.College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China
3.Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Macao
Recommended Citation
GB/T 7714
Lyu, Yun Peng,Li, Bo,Zhu, Lei,et al. A new compact and wideband quadrature feeding network with an integrated asymmetrical phase shifter[J]. IET Microwaves, Antennas and Propagation,2021,15(4):397-403.
APA Lyu, Yun Peng,Li, Bo,Zhu, Lei,&Cheng, Chong Hu.(2021).A new compact and wideband quadrature feeding network with an integrated asymmetrical phase shifter.IET Microwaves, Antennas and Propagation,15(4),397-403.
MLA Lyu, Yun Peng,et al."A new compact and wideband quadrature feeding network with an integrated asymmetrical phase shifter".IET Microwaves, Antennas and Propagation 15.4(2021):397-403.
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