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Progress In Electromagnetics Research
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CLOSED-FORM DESIGN METHOD OF AN N-WAY DUAL-BAND WILKINSON HYBRID POWER DIVIDER

By Y. Wu, Y. Liu, S. Li, C. Yu, and X. Liu

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Abstract:
In this paper, the closed-form design method of an N-way dual-band Wilkinson hybrid power divider is proposed. This symmetric structure including N groups of two sections of transmission lines and two isolated resistors is described which can split a signal into N equiphase equiamplitude parts at two arbitrary frequencies (dual-band) simultaneously, where N can be odd or even. Based on the rigorous even- and odd- mode analysis, the closed-form design equations are derived. For verification, various numerical examples are designed, calculated and compared while two practical examples including two ways and three ways dual-band microstrip power dividers are fabricated and measured. It is very interesting that this generalized power divider with analytical design equations can be designed for wideband applications when the frequency-ratio is relatively small. In addition, it is found that the conventional N-way hybrid Wilkinson power divider for single-band applications is a special case (the frequency-ratio equals to 3) of this generalized power divider.

Citation:
Y. Wu, Y. Liu, S. Li, C. Yu, and X. Liu, " closed - form design method of an n - way dual - band wilkinson hybrid power divider ," Progress In Electromagnetics Research, Vol. 101, 97-114, 2010.
doi:10.2528/PIER09111906
http://www.jpier.org/PIER/pier.php?paper=09111906

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