Abstract
A ultra-wideband (UWB) Wilkinson power divider with step impedance resonators (SIR) was presented in this paper. It was working in the ultra wide frequency band (3.1GHz – 10.6GHz) by modifying the traditional two sections Wilkinson power divider. The simulation results of the power divider shows a good performance. The insertion loss is less than ldB, the return loss of in port is less than −11.5dB, the two out ports are less than 15dB, and the isolation is better than 17dB over the UWB band.
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