Abstract

In this paper an ultra-wideband Wilkinson power divider (WPD) using binomial multi-section matching transformer is proposed. First an optimized single section WPD is designed and the output response of this power divider needs to be improved for ultra-wideband applications. Then a two and three section WPD using binomial transformer is presented that yields satisfactory input and output responses for ultra-wideband communications. This study shows the improvement of output responses due to the introduction of λ/4 multi-sections and isolation resistors. All simulations are carried out by finite integration based CST STUDIO 10 3D EM simulator. The proposed multi-section WPD can be used for 1:2 way equal power division (3 dB) in ultra-wideband range (3.1–10.6 GHz).

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