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Wideband Out-of-Phase Filtering Power Divider with Ultra-Wide Isolation Band
Xuedao Wang1; Wai-Wa Choi2; Jianpeng Wang1; Lei Zhu2; Wen Wu1
2019-08-19
Conference Name2019 IEEE MTT-S International Wireless Symposium (IWS)
Source Publication2019 IEEE MTT-S International Wireless Symposium, IWS 2019 - Proceedings
Conference Date19-22 May 2019
Conference PlaceGuangzhou, China
PublisherIEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Abstract

A new design of wideband out-of-phase filtering power divider (FPD) with an ultra-wide isolation band is presented in this paper. By utilizing a vertical microstrip-slotline-microstrip (M-S-M) transition, wideband filtering performance is achieved. With a special feeding structure at input port as well as two shunted open-ended stubs at the output ports, four transmission zeros (TZs) are generated, resulting in the sharp skirt selectivity of the FPD. To well isolate the out-of-phase signals between two output ports, an isolation network consisting of grounded resistor and a microstrip line is located on the differential symmetrical plane. In addition, owing to the shunted stubs at output ports, two TZs are also generated in S, making the isolation bandwidth enlarged. For demonstration, generalized equivalent circuit is derived and analyzed. Finally, a prototype centered at 2.8 GHz with a 71 % of 15-dB return loss bandwidth is designed. Results indicate that the 15-dB isolation bandwidth of proposed out-of-phase FPD is up to 109 %.

KeywordFiltering Power Divider (Fpd) Out-of-phase Ultra-wide Isolation Band Wideband
DOI10.1109/IEEE-IWS.2019.8803975
URLView the original
Indexed ByCPCI-S
Language英語English
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000503215600124
Scopus ID2-s2.0-85071730746
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Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.Ministerial Key Laboratory of JGMT, Nanjing University of Science and Technology
2.Department of Electrical and Computer Engineering, University of Macau
Recommended Citation
GB/T 7714
Xuedao Wang,Wai-Wa Choi,Jianpeng Wang,et al. Wideband Out-of-Phase Filtering Power Divider with Ultra-Wide Isolation Band[C]:IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA,2019.
APA Xuedao Wang,Wai-Wa Choi,Jianpeng Wang,Lei Zhu,&Wen Wu.(2019).Wideband Out-of-Phase Filtering Power Divider with Ultra-Wide Isolation Band.2019 IEEE MTT-S International Wireless Symposium, IWS 2019 - Proceedings.
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