Generalized Symmetrical 3 dB Power Dividers With Complex Termination Impedances

Abstract

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

Miniaturization of Power Dividers by Using Asymmetric CMRC Structures and QWLTs with Low-Cost Materials

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“…Futhermore, a coupled line configuration in [4] is incorporated to further enhance the bandwidth. The techniques presented in [2][3][4][5][6][7] were employed to decrease losses of PDs. However, the physical dimensions of PDs in those prior studies remained unchanged.…”

Design of seven‐way Bagley power divider with arbitrary output power ratio

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