Dual polarized broadband wide scanning arrays are found to be of great interest for application in modern and future radars and satellite telecommunications systems. Designing such arrays puts on the array element two contradictory requirements: minimization of cross-section of the element aperture and decreasing its cut-off frequency.

In the paper a combined disc-on-rod in cylindrical waveguide radiating element (“disk-on-rod-in-waveguide”) as a potential candidate for the arrays is studied.