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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2011-12-24
Design of Unequal Wilkinson Power Divider for Tri-Band Operation
By
Chen Miao,

    Dr. Chen Miao

    Nanjing University of Science and Technology

    China

    Homepage

Bo Li,

    Dr. Bo Li

    School of Electrical and Electronic Engineering

    Nanyang Technological University

    Singapore

    Homepage

Guo Yang,

    Dr. Guo Yang

    Nanjing University of Science and Technology

    China

    Homepage

Nan Yang,

    Dr. Nan Yang

    Department of Information and Electronic Engineering

    Zhejiang University

    China

    Homepage

Changzhou Hua,

    Dr. Changzhou Hua

    Department of Information and Electronic Engineering

    Zhejiang University

    China

    Homepage

Wen Wu

    Dr. Wen Wu

    Nanjing University of Science & Technology

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 28, 159-172, 2012
doi:10.2528/PIERL11090302 | Google Scholar

Abstract
This paper presents a novel tri-band unequal Wilkinson power divider. The proposed structure is derived from the conventional unequal Wilkinson power divider by replacing the quarter-wavelength branch lines and quarter-wavelength transformers with the extended T-shaped short stubs and three-section transformers respectively. The first and third operating frequencies of the proposed Wilkinson power divider can be flexibly controlled, while the second frequency is equal to the mean value of the other two frequencies. Both of the closed-form equations and design procedure are given. For verification, a tri-band unequal power divider with the power dividing ratio of 2:1 and operating frequencies of 1.3, 3.0 and 4.7 GHz is designed, fabricated and measured. The measurement results are in good agreement with the simulation ones. It is shown that the proposed power divider has simple topology and good performances in terms of insertion loss, port matching and isolation at all three operating frequency bands.
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Citation
Chen Miao, Bo Li, Guo Yang, Nan Yang, Changzhou Hua, and Wen Wu, "Design of Unequal Wilkinson Power Divider for Tri-Band Operation," Progress In Electromagnetics Research Letters, Vol. 28, 159-172, 2012.
doi:10.2528/PIERL11090302
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