Wide band power divider based on Ridge gap waveguide

The Ridge gap waveguide is a promising guiding structure, where there is no need to ensure the electrical contact and it has a possible operating bandwidth of 2:1 or even more. However, most of the presented passive devices based on this technology support a small portion of the possible bandwidth. This limitation is due to either the objective device or the excitation technique. In this work, a wide band power divider is introduced. The bandwidth of the presented power divider is from 10.3 GHz to 20.3 GHz, which is, almost, the possible bandwidth of the Ridge Gap Waveguide (RGW) unit cell. The matching level of the complete structure is better than 17 dB for the operating bandwidth.