INTERNAL ANTENNA DEVICE FOR LOW FREQUENCY BAND

摘要

PURPOSE: An integrated antenna device for a low frequency band is provided to make a better use of a space by effectively integrating a radiator pattern in a restricted space. CONSTITUTION: An antenna device is formed by establishing a polyhedron block in the non-ground area of a printed circuit board. The polyhedron block comprises a first radiator pattern(120) and a coupling pattern(130) which is separated from the first reflector pattern and couples the flow of the current flowing into the first radiator pattern. The non-ground area of the printed circuit board comprises a upper layer substrate, a lower layer substrate, a second radiator pattern(220) which is electrically connected to the first radiator pattern, a third radiator pattern(230) which is electrically connected to the second radiator pattern, a ground terminal which is connected to the coupling pattern.