Patent ID: 8593354

Claim:
A multi-band antenna, comprising: a grounding element extending horizontally along a longitudinal direction, comprising a side edge with a connecting point and a grounding point distanced from the connecting point by a length; a radiating element disposed at an upper level parallel to the grounding element and defining a first end and a second end, and operating in a first frequency band; a connecting element located between the radiating element and the grounding element, comprising a first portion connecting to the first end of the radiating element and a second portion linking to said connecting point of the grounding element; a parasitic element extending from the second portion of the connecting element towards the second end of the radiating element along the longitudinal direction, and operating in a second frequency band; a feeding point disposed on the second portion of the connecting element and under the parasitic element; and a feeding line comprising an inner conductor connected to the feeding point and an outer conductor connected to the grounding point; wherein said connecting element, the grounding element, the feeding point and the grounding point together forming a slot operating in a third frequency band.