A Novel Compact, Wideband Four-Way Wilkinson Power Divider With an Improved Isolation Topology

Ding, Yan; Wan, Jing; Yan, Yuepeng; Liang, Xiujuan

doi:10.1109/lmwt.2023.3279898

IEEE Microw. Wireless Tech. Lett.

2023

DOI: 10.1109/lmwt.2023.3279898

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A Novel Compact, Wideband Four-Way Wilkinson Power Divider With an Improved Isolation Topology

Yan Ding

Jing Wan

Yuepeng Yan

et al.

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2024

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Cited by 5 publications

References 12 publications

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High‐selectivity wideband four‐way filtering power divider with input absorptive feature

Zhang,

Liu,

Wang

et al. 2024

Circuit Theory & Apps

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In the paper, a high‐selectivity wideband four‐way filtering power divider with input absorptive feature is presented. It consists of two parallel‐coupled lines (CLs), two three‐coupled lines (TCLs), two open‐ended stepped branches, one absorptive branch, and two isolation resistors. The wideband filtering response is achieved by cascading the TCLs and CLs. While high selectivity is obtained by loading the open‐ended stepped branch, where two extra transmission zeros are generated. In addition, wide absorptive bandwidth with good isolations between adjacent output ports are realized by combining the absorptive branch with the isolation resistors. Equations are derived by using the two‐parity mode analysis, and main parameters are investigated in detail. For validation, a prototype was designed and fabricated. Test results show that the 3‐dB FBW can reach 87% with a 10‐dB input absorptive FBW of 200%. Besides, for the output ports with 10‐dB return loss and 10‐dB isolation, the FBWs are 94% and 91.5%, respectively. It also features high frequency selectivity and low insertion loss.

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High‐selectivity wideband four‐way filtering power divider with input absorptive feature

Zhang,

Liu,

Wang

et al. 2024

Circuit Theory & Apps

View full text Add to dashboard Cite

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Exact synthesis of couple‐line based wideband four‐way filtering power divider with unequal power division

Chen,

Liu,

Wang

et al. 2024

Micro & Optical Tech Letters

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In this paper, a coupled‐line‐based wideband four‐way filtering power divider (FPD) with unequal power division is presented. It is composed of three groups of coupled lines (CLs), four types of open‐ended stubs, and three kinds of resistors. By setting the CLs in each group with different parameters, unequal power distribution is obtained. Besides, open‐ended stubs with different characteristic impedances are inserted to each output port to generate two extra transmission zeros, at the same time maintaining good impedance matchings. Resistors are inserted to each group of the CLs to improve the isolations. By applying twice parity mode analysis, the exact synthesis of the proposed FPD is first derived. For demonstration, a prototype with power division ratio of 1:1.2:1.5:1.8 is designed and manufactured. Measurement results verified that more than 60% fractional bandwidth (FBW) is obtained under the criterion of 10 dB return loss and 10 dB isolation. Besides, the 3 dB passband FBWs for the four outputs reach 70% with high frequency selectivity and low insertion loss. And more than 15 dB out‐of‐band rejections are achieved for both the lower and upper stopbands.

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Broadband Low-Loss Four-Way Power Divider Using Composite Cavity

Huang,

Yan,

Yang

et al. 2024

IEEE Microw. Wireless Tech. Lett.

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A Novel Compact, Wideband Four-Way Wilkinson Power Divider With an Improved Isolation Topology

Cited by 5 publications

References 12 publications

High‐selectivity wideband four‐way filtering power divider with input absorptive feature

High‐selectivity wideband four‐way filtering power divider with input absorptive feature

Exact synthesis of couple‐line based wideband four‐way filtering power divider with unequal power division

Broadband Low-Loss Four-Way Power Divider Using Composite Cavity

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