UWB out-of-phase network feeding a 2-element impulse radiating array

In this paper, an out-of-phase feeding network, which is suitable to be used in the UWB frequency range, has been presented. This feeding network has been used to feed a two-element UWB array. The complete structure has been fabricated and tested through a full 3D measurement. The measured results confirm the theoretical approach and validate the realized structure. In particular, a time domain analysis has been conducted. From that analysis, it has been possible to determine the distortion of the network on the propagating impulse.