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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2022-07-18
Compact Wideband Power Divider Based on Unequal-Width Three-Coupled-Lines
By
Hongmei Liu,

    Professor Hongmei Liu

    School of Information Science and Technology

    Dalian Maritime University

    China

    Homepage

Yihan Ma,

    Dr. Yihan Ma

    School of Information Science and Technology

    Dalian Maritime University

    China

    Homepage

Siran Zhang,

    Dr. Siran Zhang

    School of Information Science and Technology

    Dalian Maritime University

    China

    Homepage

Shao-Jun Fang,

    Prof. Shao-Jun Fang

    Information Engineering College

    Dalian Maritime University

    China

    Homepage

Zhongbao Wang

    Dr. Zhongbao Wang

    School of Information Science and Technology

    Dalian Maritime University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 105, 33-39, 2022
doi:10.2528/PIERL22052601 | Google Scholar

Abstract
In the paper, a compact wideband power divider (PD) which consists of a λ/4 unequal width three-coupled-lines, four short-circuited stubs and an airbridge resistor is presented. By connecting the four short-circuited stubs to the input and output ports of the PD, two additional transmission poles are obtained, which results in enhanced bandwidth and improved selectivity. Rigorous design equations are given according to the even-odd mode analysis, and the design parameters are obtained based on particle swarm optimization. For validation, a prototype operating at 1 GHz is fabricated and tested. The experimental results indicate that the proposed power divider exhibits a return loss of more than 17.5 dB and an isolation of larger than 18.8 dB isolation in the fractional bandwidth of 91%.
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Citation
Hongmei Liu, Yihan Ma, Siran Zhang, Shao-Jun Fang, and Zhongbao Wang, "Compact Wideband Power Divider Based on Unequal-Width Three-Coupled-Lines," Progress In Electromagnetics Research Letters, Vol. 105, 33-39, 2022.
doi:10.2528/PIERL22052601
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