Abstract: An ultra-wideband assembly in an electrical circuit having a circuit board with a conductive micro-strip line is provided. The assembly includes a non-conductive tapered core having an outer surface, a distal end, and a proximate end. The distal end is being larger than proximate end. The assembly includes a conductive wire having a proximate end and a distal end and being wound about at least a portion of the non-conductive tapered core. The proximate end of the conductive wire extends away from the proximate end of the non-conductive tapered core and is being conductively coupled to the micro-strip line of the circuit board. The distal end of the conductive wire extends away from the distal end of the non-conductive tapered core. The conductive wire contacts at least a portion of the outer surface of the non-conductive tapered core. The assembly includes a supporting bracket coupled to the non-conductive tapered core. The bracket includes a base portion and a core attachment portion.