Patent ID: 7397432

Claim:
A built-in antenna module for a portable wireless terminal, the module comprising: a mainboard being an RF board and having a feeding unit, a grounding unit, an upper surface, a lower surface opposite the upper surface, and a thickness t 1 ; a radiator disposed on one side facing the upper surface of the mainboard, and having a feed pin and a ground pin electrically connected to the feeding unit and the grounding unit of the mainboard, respectively; a conductive layer electrically connected to the ground unit and disposed on the lower surface to add an amount up to t 1 to an orthogonal distance between the radiator and the conductive layer for improving antenna performance; and a conductive ground plate disposed on the other side facing the lower surface of the mainboard and spaced a predetermined height therefrom for improving antenna performance, the conductive ground plate being electrically connected to the radiator via the ground unit and the ground pin.