A Modified Unequal Wilkinson Power Divider Using T-Shaped Transformers

Tsai, Ren-Fu; Deng, Pu-Hua; Chang, Ting-Jung

doi:10.1109/eptc.2018.8654262

Cited by 2 publications

(1 citation statement)

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“…The twoway, 3 dB Wilkinson power divider [1] is a classical solution to the necessity to have matched and isolated ports while providing a lossless equal power division on a narrow frequency band. Driven by the requirements of various applications, the conventional Wilkinson design has been generalized to provide arbitrary splitting ratio [2]- [4] and phase relation between the output signals [5]- [7]. Additionally, the drive towards system integration has recently made the design of reduced size dividers increasingly popular [8]- [16].…”

Section: Introductionmentioning

confidence: 99%

Generalized Symmetrical 3 dB Power Dividers With Complex Termination Impedances

2020

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The paper introduces a class of two-way, 3 dB narrowband power dividers (combiners), closed on complex termination impedances, that generalizes a number of topologies presented during past years as extensions of the traditional Wilkinson design. Adopting even-odd mode analysis, we demonstrate that, under very broad assumptions, any axially symmetric reactive 3-port can be designed to operate as a 3 dB two-way power divider, by connecting a properly designed isolation impedance across two symmetrically but arbitrarily located additional ports. We show that this isolation element can be evaluated by a single input impedance or admittance CAD simulation or measurement; moreover, an explicit expression is given for the isolation impedance. The theory is shown to lead to the same design as for already presented generalizations of the Wilkinson divider; further validation is provided through both simulated and experimental case studies, and an application of the theory to the design of broadband or multi-band couplers is suggested. INDEX TERMS Power dividers, Wilkinson, hybrid. ANNA PIACIBELLO (Member, IEEE) was born in Chivasso, Italy, in 1991. She received the bachelor's and master's degrees in electronic engineering and the Ph.D. degree (cum laude) in electrical, electronics and communication engineering from the

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