The guideline of designing the proposed power divider is provided. The theoretical background of the proposed broadband topology is explained. Practically, the widest achievable bandwidth is limited by the implementable component values. Theoretically, the operation bandwidth can keep increasing with the increased number of segments. The segmented structure resembles a multiorder matching network and can extend the operation bandwidth through concurrent matching at multiple frequencies. Each transmission line segment has the length of a fraction of a quarter of the wavelength (or λ/4) and the summed length of all segments remains λ/4. The segmented structure is formed by many transmission line segments in shunt with grounded capacitors and series resistor-capacitor networks. This paper proposes a topology of a broadband Wilkinson power divider based on the segmented structure. It has been shown that the Euler method can achieve higher bandwidth, lower return loss and better Isolation than the conventional WPD. The design has been compared with a quarter wave (QW) WPD. Along the operation band interval, the minimum insertion loss measured lower than 0.75 dB. The percent bandwidth of the WPD was calculated as 124.5%. The bandwidth was measured as 0.75 to 3.80 GHz. In the Euler WPD, center frequency was 2.45 GHz and the limits for the return loss and isolation was selected as 15 dB and 20 dB, respectively. The isolation resistors have been calculated by odd‐even mode analysis according to the line impedances. The Euler polynomials have been used to calculate the characteristic impedance of each section. In the three‐section of the WPD, the Euler function has been modeled as a reflection coefficient on the output branches. Euler method has applied to the circuit that had equal power dividing feature on its two output ways. In this study, an ultra‐wideband (UWB) multisection Wilkinson power divider (WPD) circuit has been designed. When the broadband impedance matching techniques are applied to the Wilkinson power divider, it operates in a larger frequency range and covers many communication bands. 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. 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. 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. 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.
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