Patent ID: 6597326
Filing Date: 2003-07-22
Classification: H01Q

Abstract:
A structure of a helix antenna, comprising: a non-uniform helical coil press positioned between an inner insulating sleeve having an external protruding annulus at a top portion, and an external insulating sleeve having an inner annular recess, the helical coil abutting against an inner top surface of the external insulating sleeve; a metallic connecting seat located in the inner insulating sleeve; an elastic metallic contact piece having a first end abutting against the metallic connecting seat, a second end including a continuous bending portion which is exposed from a side slit in the inner insulating sleeve, and a bottom end for press contacting with an RF electric circuit of a communication instrument; the helical coil having a top end with a diametrically extending bent section to provide added loading to the antenna, a bottom end of the helical coil having a dense coil section positioned oh a surface of the metallic connecting seat; the inner and external insulating sleeves are fixedly connected by inserting the external protruding annulus on the inner insulating sleeve into the inner annular recess on the external insulating sleeve thereby fixing the length of the helical coil.