A novel miniaturized Gysel power divider using lowpass filter with harmonic suppression

This paper presents a new design of a compact Gysel power divider with harmonic suppression. It is comprised of the six similar lowpass filters instead of the six conventional transmission lines in the Gysel power divider. The proposed power divider not only effectively reduces the occupied area to 35%, but also features the higher order harmonic rejection. Simulation and measurement results show good insertion loss, return loss, isolation, and wide stopband bandwidth, while maintaining high-power handling capability over the Wilkinson power divider.