Patent ID: 8743007

Claim:
A substrate type antenna comprising: a loop-like first joint pattern one spot of which is divided, said first joint pattern being formed in one substrate surface of a substrate comprised of a dielectric material; antennas respectively connected to both end terminals of the first joint pattern at a position where the first joint pattern is divided; a loop-like second joint pattern one spot of which is divided, said second joint pattern being formed at the other substrate surface of the substrate; a loop-like third joint pattern one spot of which is divided, said third joint pattern being formed concentrically with the first joint pattern at the one substrate surface of the substrate; and other antennas respectively connected to both end terminals of the third joint pattern at a position where the third joint pattern is divided, wherein the first and the third joint patterns are arranged at the one substrate surface so as to be within a range of a pattern formation of the second joint pattern at the other substrate surface in a vertical projection from the one substrate surface toward the other substrate surface, and in the vertical projection, the first joint pattern is arranged to overlap on a position along an inner edge of the second joint pattern and the third joint pattern is arranged to overlap on a position along an outer edge of the second joint pattern.