Modified Wilkinson Compact Wide Band (2-12GHz) Equal Power Divider

A novel compact wideband (2-12 GHz) Wilkinson equal power divider on microstrip line is proposed in this paper. In this paper, a novel approach to the design of a Wideband (2-12) power divider is presented. In order to achieve the wideband performance, the divider is established by introducing variable width of microstrip line between input lines to output lines of different impedance. Finally, a compact power divider is designed, and it is demonstrated that 3 dB powers splitting from one input port to two output ports is achieved. In addition, good impedance matching at all the three ports and excellent isolation between two output ports are obtained over the specified 2-12 GHz WB range. The simulated and measured input return loss is approximately 21 dB at center frequency 7.92 GHz. The average insertion loss, and group delay are around 3 dB (including the 3-dB power-dividing insertion loss) and around 0.09 ns over across the WB. In addition, the measured and simulated isolation between the output ports is approximately 25 dB at center frequency 7.92 GHz.