ANTENNA APPARATUS INCLUDING PATCH ANTENNA AND COIL ANTENNA MOUNTED ON SINGLE ANTENNA SUBSTRATE SUCH THAT TWO ANTENNAS CORRESPOND TO DIFFERENT FREQUENCIES

摘要

PURPOSE: An antenna apparatus is provided to reduce the size of the antenna apparatus by arranging two antenna elements on a single antenna substrate such that the antenna elements correspond to different frequencies. CONSTITUTION: An antenna apparatus comprises a dielectric substrate(31), a first frequency receiving patch antenna(34), a second frequency receiving coil antenna(32), and a grand member. The first frequency receiving patch antenna has a first size, and is arranged on a first surface of the dielectric substrate. The second frequency receiving coil antenna has a second size larger than the first size, and is arranged on the first surface of the dielectric substrate such that the second frequency receiving coil antenna surrounds the patch antenna. The grand member has a third size larger than the first size and smaller than the second size, and is arranged on a second surface of the dielectric substrate.