An ultra-wideband assembly is provided. The assembly includes a non-conductive tapered core having a conductive wire wound on an outer surface of the non-conductive tapered core, a low-frequency inductor coupled to the non-conductive tapered core via the distal end of the conductive wire and configured to allow mounting of the non-conductive tapered core at an angle with respect to the circuit board. The low frequency inductor is being disposed on a dielectric board configured to be coupled to the circuit board. The assembly includes an ultra-wideband capacitor coupled to the non-conductive tapered core via the proximate end of the conductive wire, the ultra-wideband capacitor being also coupled to the transmission line on the dielectric board.