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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2014-08-23
A Symmetrical Outputs Uniplanar Out-of-Phase Power Divider Without Phase Shifter
By
Chen Miao,

    Dr. Chen Miao

    Nanjing University of Science and Technology

    China

    Homepage

Xuezheng Zheng,

    Dr. Xuezheng Zheng

    Nanjing University of Science and Technology

    China

    Homepage

Jinping Yang,

    Dr. Jinping Yang

    Nanjing Univ Sci & Technol

    China

    Homepage

Wen Wu

    Dr. Wen Wu

    Nanjing University of Science & Technology

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 48, 95-101, 2014
doi:10.2528/PIERL14070208 | Google Scholar

Abstract
A new out-of-phase power divider (PD) without phase shifter at the output ports is proposed. Based on admittance matrix, a new topology of uniplanar power divider with symmetrical outputs is designed. Under conditions of good matching, perfect isolation, and 180° phase difference between two output ports, the corresponding design equations and synthesis procedures are derived and given with admittance matrix. To verify the design approach, an out-of-phase power divider operating at 2 GHz with equal power division ratio is designed, fabricated, and measured. Experimental results demonstrate that the input return loss is better than 32 dB, the insertion loss is less than 0.29 dB and the isolation is better than 33 dB. The amplitude imbalance between the output ports is 0.03 dB and the phase difference between the two output ports is 181.6 °at the operation frequency. Further more, 49.9% relative bandwidth of 15 dB return loss and 39.4% relative bandwidth of 20 dB port isolation are achieved.
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Citation
Chen Miao, Xuezheng Zheng, Jinping Yang, and Wen Wu, "A Symmetrical Outputs Uniplanar Out-of-Phase Power Divider Without Phase Shifter," Progress In Electromagnetics Research Letters, Vol. 48, 95-101, 2014.
doi:10.2528/PIERL14070208
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