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Wideband impedance transformers on parallel-coupled and multisection microstrip lines: Synthesis design and implementation
Wu Q.-S.; Zhu L.
2016-12-01
Source PublicationIEEE Transactions on Components, Packaging and Manufacturing Technology
ISSN21563950
Volume6Issue:12Pages:1873-1880
Abstract

A class of impedance transformers on coupled lines and multisection stepped-impedance transmission line are presented in this paper, which can achieve a wide operating band or passband. A direct synthesis approach is described and employed to design these transformers with Chebyshev frequency response. If the impedance transformation ratio, passband return loss (RL), and operating bandwidth are properly specified, all the required design parameters of these transformers can be explicitly determined. Moreover, a special region for realizable impedance transformation ratio and operating bandwidth with respect to the equal-ripple RL in the desired passband is extensively investigated. As such, various sets of design curves for synthesis design of our proposed impedance transformers are numerically derived. In final, the two prototype 50-25- Ω impedance transformers with the 62.5% fractional bandwidth and 20-dB passband RL are designed, fabricated, and measured to confirm the theoretical predictions in experiment.

KeywordCoupled Lines Impedance Transformers Synthesis Design Wide Operating Band
DOI10.1109/TCPMT.2016.2621055
URLView the original
Indexed BySCI
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Manufacturing ; Engineering, Electrical & Electronic ; Materials Science, Multidisciplinary
WOS IDWOS:000393054100016
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Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
AffiliationUniversidade de Macau
Recommended Citation
GB/T 7714
Wu Q.-S.,Zhu L.. Wideband impedance transformers on parallel-coupled and multisection microstrip lines: Synthesis design and implementation[J]. IEEE Transactions on Components, Packaging and Manufacturing Technology,2016,6(12):1873-1880.
APA Wu Q.-S.,&Zhu L..(2016).Wideband impedance transformers on parallel-coupled and multisection microstrip lines: Synthesis design and implementation.IEEE Transactions on Components, Packaging and Manufacturing Technology,6(12),1873-1880.
MLA Wu Q.-S.,et al."Wideband impedance transformers on parallel-coupled and multisection microstrip lines: Synthesis design and implementation".IEEE Transactions on Components, Packaging and Manufacturing Technology 6.12(2016):1873-1880.
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