Vol. 23

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2011-04-18

Miniaturized Size Branch Line Coupler Using Open Stubs with High-Low Impedances

By Mohamed Yasir Omer Elhiwairis, Sharul Kamal Bin Abd Rahim, Uche A. Kennedy Okonkwo, Noorlindawaty Bte Md Jizat, and Mohd Faizal Bin Jamlos
Progress In Electromagnetics Research Letters, Vol. 23, 65-74, 2011
doi:10.2528/PIERL11022306

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.

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
http://jpier.org/PIERL/pier.php?paper=11022306

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