Design of a broadband three-way power divider using modified microstrip-slotline

A novel three-way power divider with a broadband (4 to 9 GHz) performance is presented. The proposed power divider utilizes a modified broadband slot-coupling configuration in the ground. For verification, the measured results of less than 1.2 dB insertion loss, better than 13 dB return loss and almost 10 dB isolation across the whole operating band, are also given, which show basic agreement to the simulation results.