UM
Wideband out-of-phase filtering power divider with high selectivity
Wang,Xuedao1,2; Choi,Wai Wa2; Wang,Jianpeng1; Wu,Wen1
2018-07-02
Source PublicationAsia-Pacific Microwave Conference Proceedings, APMC
Volume2018-November
Pages417-419
AbstractA new design of wideband out-of-phase filtering power divider (FPD) with high selectivity is presented on the basis of a vertical microstrip-slotline-microstrip (M-S-M) transition in this paper. By wisely replacing the traditional quarter-wavelength open-circuited microstrip line in the M-S transition with an open/short stepped-impedance resonator, two transmission zeros (TZs) are generated, resulting in a controllable bandwidth and 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. Equations for determination of TZs are derived from the equivalent schematic circuit. For demonstration, a prototype centered at 2.83 GHz with 3-dB fractional bandwidth of 64.8% is designed, fabricated and tested. Both simulated and measured results are displayed to verify the feasibility of our proposed design concept.
KeywordFiltering power divider (FPD) Isolation Out-of-phase Stepped-impedance resonator (SIR) Wideband
DOI10.23919/APMC.2018.8617388
URLView the original
Language英语
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Document TypeConference paper
CollectionUniversity of Macau
Affiliation1.Ministerial Key Laboratory of JGMT,Nanjing University of Science and Technology,Nanjing,210094,China
2.Department of Electrical and Computer Engineering,University of Macau,Macao,Macao
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Wang,Xuedao,Choi,Wai Wa,Wang,Jianpeng,et al. Wideband out-of-phase filtering power divider with high selectivity[C],2018:417-419.
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