A Novel Compact UWB Power Divider for Spatial Power Combining

Abstract

A novel ultra wideband (UWB) power divider applied in spatial power combining is proposed, which combines a tapered transmission line and 1-to-2 power dividers to realize a 1-to-4 power-dividing function. The simulated and measured results reveal a good agreement. The magnitudes of insertion loss are approximately equal, and phases are almost the same, so the proposed structure is used to design a passive spatial power combiner. The return loss of the spatial power combiner is below –15 dB on the whole, and insertion loss is between –0.9 ∼ 0 dB.