Patent ID: 6337669
Filing Date: 2002-01-08
Classification: H01Q

Abstract:
An improved structure for a multi-frequency antenna for a mobile phone, wherein said antenna is placed in an inner insulation sleeve to position a coil in cooperation with a receiving seat and is provided with an elastic conductive member connected with one end thereof to a lower portion of said receiving seat and exposed partially to the outside; an outer sleeve is slipped over said inner insulation sleeve, said outer sleeve having internal elements including said receiving seat, said coil and said elastic conductive member, such that one end of said coil abuts against an inner top surface of said outer sleeve, and a bottom end of said coil abuts against a surface of said receiving seat; said coil including along a length thereof, a sparse coil section and a dense coil section, such that said coil forms a multi-frequency antenna together with said receiving seat and said elastic conductive member.