A Novel UWB Out-of-Phase Four-Way Power Divider

摘要

A novel ultra-wideband (UWB) out-of-phase four-way power divider is presented. To achieve a division over a large frequency range, T-junctions formed by slotlines and microstrip lines are utilized. Based on the transmission-line equivalent-circuit method, we derive the design equations of the proposed power divider. Furthermore, all measured results are in good agreement with the predicted design equations and simulations. In addition, based on the power divider, a completely novel feed network is proposed to improve the narrow band property of microstrip antenna array.