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PIER PIER B PIER C PIER M PIER Letters
2011-06-06
A Miniature CPW Balun Constructed with Length-Reduced 3db Couples and a Short Redundant Transmission Line
By
Zeu-Yuan Yeh,

    Dr. Zeu-Yuan Yeh

    Chang Gung University

    Taiwan, R.O.C.

    Homepage

Yi-Chyun Chiang

    Prof. Yi-Chyun Chiang

    Chang Gung University

    Taiwan

    Homepage

Progress In Electromagnetics Research, Vol. 117, 195-208, 2011
doi:10.2528/PIER11041503
Abstract
This work presents a new type of CPW balun consisting of 3dB coupled-line sections, which are one eighth wavelength long, and a short redundant transmission line for the applications of the modern wireless communication systems. A set of design equations that can determine the values of the elements of balun is proposed. A new type of coupler constructed with a structure similar to the conventional step impedance resonator is developed to further reduce the size of the balun. An experimental prototype operated at 1.0 GHz was designed and fabricated to verify the proposed design method. The measurement results show quite good correspondences with the theoretical predictions and the EM simulations.
Citation
Zeu-Yuan Yeh, and Yi-Chyun Chiang, "A Miniature CPW Balun Constructed with Length-Reduced 3db Couples and a Short Redundant Transmission Line," Progress In Electromagnetics Research, Vol. 117, 195-208, 2011.
doi:10.2528/PIER11041503
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