Patent ID: 8125404
Filing Date: 2012-02-28
Classification: H01Q

Abstract:
1. A monopole antenna, comprising: a base board, having a first side and a second side; a grounding element, attached on the first side of the base board; a coupling element, attached on the first side of the base board and being spaced apart from the grounding element; and a radiating element, connected to the coupling element and exposed out the base board, said radiating element comprising a straight first radiating portion, a spiral second radiating portion, and a straight third radiating portion, said first radiating portion and said third radiating portion are connected to two opposite ends of the second radiating portion; wherein said grounding element and the coupling element arranged in a line and the first radiating portion crosses through the entirety of the coupling element; wherein said first radiating portion of the radiating element is attached on the coupling element, the second radiating portion and the third radiating portion are spaced apart from the coupling element.