Patent ID: 7564410

Claim:
A dual radiating type inner antenna for a mobile communication terminal comprising: a Printed Circuit Board (PCB); a first radiation plate provided at an upper part of the PCB; and a power supply unit connecting the PCB and the first radiation plate to supply electric current to the first radiation plate, wherein the PCB comprises: a board body having an upper surface and a lower surface opposite to the upper surface; a power supply pad formed in the upper surface of the board body under the first radiation plate, connected to the power supply unit; a floating patch formed within the board body, wherein the floating patch has a slot larger than the power supply pad formed in a location corresponding to a location of the power supply pad; a second radiation plate formed on the lower surface of the board body under the first radiation plate; and a ground layer formed on the lower surface of the board body and disposed apart from the second radiation plate, wherein electric current supplied to the power supply unit through the power supply pad is radiated as electromagnetic waves of a first predetermined frequency band through the first radiation plate, and is radiated as electromagnetic waves of a second predetermined frequency band through the second radiation plate after the current is coupled through the slot of the floating patch from the power supply pad wherein the first radiation plate has a size larger than the second radiation plate, the floating patch has a size larger than the second radiation plate, and the second radiation plate has a size larger than the slot of the floating patch.