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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2011-04-18
Miniaturized Size Branch Line Coupler Using Open Stubs with High-Low Impedances
By
Mohamed Yasir Omer Elhiwairis,

    Dr. Mohamed Yasir Omer Elhiwairis

    Faculty of Electrical Engineering

    Universiti Teknologi Malaysia

    Malaysia

    Homepage

Sharul Kamal Bin Abd Rahim,

    Dr. Sharul Kamal Bin Abd Rahim

    Fakulti Kejuruteraan Elektrik

    University Technology Malaysia

    Malaysia

    Homepage

Uche A. Kennedy Okonkwo,

    Dr. Uche A. Kennedy Okonkwo

    Universiti Teknologi Malaysia

    Malaysia

    Homepage

Noorlindawaty Bte Md Jizat,

    Ms. Noorlindawaty Bte Md Jizat

    Faculty of Electrical Engineering

    Universiti Teknologi Malaysia

    Malaysia

    Homepage

Mohd Faizal Bin Jamlos

    Dr. Mohd Faizal Bin Jamlos

    University Technology Malaysia (UTM)

    Malaysia

    Homepage

Progress In Electromagnetics Research Letters, Vol. 23, 65-74, 2011
doi:10.2528/PIERL11022306 | Google Scholar

Abstract
In this paper a miniaturized branch-line coupler is proposed. The topology of the circuit is designed using novel design of T-model approach with open stubs with high-low impedances, which provides necessary bandwidth for WLAN band at 2.45GHz. The miniaturized branch-line coupler is designed and fabricated with a low-cost FR4 substrate as a platform in producing significantly reduction by more than 64.21% compared to the conventional coupler on inexpensive board. Furthermore, the coupler can equally divide the input signal with 90° phase of difference while maintaining the initial power from the source.
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Citation
Mohamed Yasir Omer Elhiwairis, Sharul Kamal Bin Abd Rahim, Uche A. Kennedy Okonkwo, Noorlindawaty Bte Md Jizat, and Mohd Faizal Bin Jamlos, "Miniaturized Size Branch Line Coupler Using Open Stubs with High-Low Impedances," Progress In Electromagnetics Research Letters, Vol. 23, 65-74, 2011.
doi:10.2528/PIERL11022306
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