Design and Simulation of Equal Split Wilkinson Power Divider İremnur Duru1

Abstract

In this study, the design and simulation of an equally split C Band Wilkinson Power Divider is presented. It is aimed that the divider distributes the power equally and provides lossless, reciprocal, and high isolation between the output ports. Microstrip technology has been utilized as the design process. A micro strip is a transmission line mounted on a copper conductive material. It has been used 𝜆/4 transformer with characteristic impedance 2 ∙ 𝑍0. In this system, improvements have been made to increase bandwidth and high isolation. The designed divider has been simulated in the AWR Microwave Office. It has been used FR4 substrate with 0.21 mm thickness. Operating frequency has been chosen 7.2 GHz. The designed divider is suitable for good matching and isolation according to S parameter values. While the S21 and S31 values should be -3 dB in theory, it is not possible for us to see this value in the designed systems. From the simulation results, Insertion Loss (S21 and S31), Isolation Loss (S32) are about -3.4 dB, -22 dB respectively. Input (S11) and Output return loss (S22) are respectively about -22 dB and -44 dB. The designed power divider is a passive circuit element used to divide power at the same or different frequencies in mobile and small applications. The simulated power divider has useful in RF applications.