volume | PIER Journals

2009-05-27

A 6:1 Unequal Wilkinson Power Divider with EBG CPW

Chieh-Pin Chang,

Dr. Chieh-Pin Chang

Institute of Microelectronics Engineering

National Cheng-Kung University

Taiwan

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Chun-Chi Su,

Dr. Chun-Chi Su

Department of Electrical Engineering

National Cheng-Kung University

Taiwan

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Shih-Han Hung,

Dr. Shih-Han Hung

Department of Electrical Engineering

National Cheng-Kung University

Taiwan

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Yeong-Her Wang,

Prof. Yeong-Her Wang

Institute of Microelectronics, Department of Electrical Engineering

National Cheng-Kung University

Taiwan, ROC

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Ja-Hao Chen

Dr. Ja-Hao Chen

Department of Electrical Engineering

Tunghai University

Taiwan

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Progress In Electromagnetics Research Letters, Vol. 8, 151-159, 2009

doi:10.2528/PIERL09032801

Abstract

A 6:1 unequal Wilkinson power divider that combines the advantages of a coplanar waveguide with an electromagnetic bandgap (EBG CPW) and microstrip line structures suitable for a PCB circuit design is proposed. The highly characteristic impedance transmission line (TL) is realized by employing the proposed EBG CPW structure, which is difficultly achieved using the conventional microstrip line or CPW due to printed circuit board (PCB) process limitations. The proposed EBG structure enables the CPW line to have a very high characteristic impedance of over 207 Ω. The fabricated 6:1 power divider delivers excellent matching and isolation performances with more than 34 dB at 1.5 GHz. It also has exact dividing ratios of 8.46 dB and 0.7 dB at two output ports, respectively.

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Chieh-Pin Chang, Chun-Chi Su, Shih-Han Hung, Yeong-Her Wang, and Ja-Hao Chen, "A 6:1 Unequal Wilkinson Power Divider with EBG CPW," Progress In Electromagnetics Research Letters, Vol. 8, 151-159, 2009.
doi:10.2528/PIERL09032801

References

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