Monopole antenna with ultra wide band

摘要

A monopole antenna includes a base board with a first side and a second side, a radiating element, a grounding element and a feeding line. The radiating element and the grounding element are located on the first side of the base board. The grounding element is two times longer than the radiating element. The feeding line includes an inner conductor connected to the radiating element and an outer conductor connected to the grounding element.