Patent ID: 6473042
Filing Date: 2002-10-29
Classification: G06F,H01Q

Abstract:
A plate-type antenna for an electronic device, comprising:a conductive radiating plate unit; a conductive grounding plate unit vertically spaced apart from and electrically connected to said radiating plate unit; and a conductive signal feeding leg electrically connected to said radiating plate unit, spaced apart from said grounding plate unit, and adapted to be connected to an electromagnetic transmitter and an electromagnetic receiver; wherein at least one of said radiating plate unit and said grounding plate unit is extendable, wherein said radiating plate unit includes rectangular first and second radiating plates, said antenna further comprising a radiating coupling unit that includes a plurality of retaining holes formed in one of said first and second radiating plates and aligned in a longitudinal direction, and at least a retaining protrusion projecting from the other one of said first and second radiating plates and selectively into one of said retaining holes so as to permit extension and retraction of said radiating plate unit in said longitudinal direction and so as to couple said first and second radiating plates in a manner that said first and second radiating plates are in face-to-face contact with each other.