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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2016-12-05
Planar Wideband Balun with Novel Slotline T-Junction Transition
By
Ya-Li Yao,

    Dr. Ya-Li Yao

    School of Electronic Engineering

    Xidian University

    China

    Homepage

Fu-Shun Zhang,

    Dr. Fu-Shun Zhang

    Xidian University

    China

    Homepage

Min Liang,

    Dr. Min Liang

    National Laboratory of Antennas and Microwave Technology

    Xidian University

    China

    Homepage

Mao-Ze Wang

    Dr. Mao-Ze Wang

    National Laboratory of Antennas and Microwave Technology

    Xidian University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 64, 73-79, 2016
doi:10.2528/PIERL16092801 | Google Scholar

Abstract
A planar wideband balun is proposed. The proposed balun consists of a novel slotline T-junction and three microstrip-slotline transitions. Similar to the principle of the E-plane waveguide T-junction, the slotline T-junction acts as a phase inverter. With the microstrip-slotline transition, the device employs microstrip as feedlines. The radiation loss of the slotline is reduced to improve the insertion loss by loading the slotline with a superstrate and adding via holes along the slotline. An experimental balun with a bandwidth of 128% from 2.2 GHz to 10 GHz is designed, fabricated, and measured for validation. The measured results have reasonable agreement with the simulated ones.
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Citation
Ya-Li Yao, Fu-Shun Zhang, Min Liang, and Mao-Ze Wang, "Planar Wideband Balun with Novel Slotline T-Junction Transition," Progress In Electromagnetics Research Letters, Vol. 64, 73-79, 2016.
doi:10.2528/PIERL16092801
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