volume | PIER Journals

2015-04-10

Complex Impedance-Transformation Out-of-Phase Power Divider with High Power-Handling Capability

Lulu Bei,

Dr. Lulu Bei

School of Information & Electrical Engineering

China University of Mining and Technology

China

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Shen Zhang,

Dr. Shen Zhang

School of Information and Electrical Engineering

China University of Mining and Technology

China

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Kai Huang

Dr. Kai Huang

School of Information & Electrical Engineering

China University of Mining and Technology

China

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Progress In Electromagnetics Research Letters, Vol. 53, 13-19, 2015

doi:10.2528/PIERL15012006

Abstract

A novel 180˚ out-of-phase power divider with complex-source to complex-load impedance transformation and high power-handling capability is proposed in this paper. It is composed of three double-sided parallel-strip lines (DSPSLs), a conduct plane in the middle as common ground, and two resistors for heat sinking and high isolation. Based on the rigorous odd- and even-mode analytical methods, closed-form design equations about electrical parameters are obtained. To demonstrate our design theory, a practical three-layer out-of-phase power divider is designed, simulated and measured. The measured results show that the return losses |S_ii| (i=1, 2, and 3) are all larger than 17 dB. The insertion loss |S₂₁| (|S₃₁|) is 3.6 dB (3.7 dB). The isolation |S₂₃| is -24 dB, and the output phase difference is -177˚ at the operating frequency. Good agreements between the simulated and measured results verify our design theory.

Citation

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Lulu Bei, Shen Zhang, and Kai Huang, "Complex Impedance-Transformation Out-of-Phase Power Divider with High Power-Handling Capability," Progress In Electromagnetics Research Letters, Vol. 53, 13-19, 2015.
doi:10.2528/PIERL15012006

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