Patent ID: 9531063
Filing Date: 2016-12-27
CPC Classification: H01Q

Claim Text:
1. A planar inverted-F antenna implantable in a living body, comprising: a first substrate made of a dielectric material; a grounding electrode disposed on a first surface of the first substrate; an emitting electrode disposed to be opposite to the grounding electrode so as to sandwich the first substrate, the emitting electrode being in the form of an S-shape, and having a short-circuiting point short-circuited to the grounding electrode at an edge portion thereof, a feed point at which power is fed and which is located away from the short-circuiting point by a distance at which the characteristic impedance of the planar inverted-F antenna for electric waves with a certain design wavelength has a certain value; a second substrate disposed to cover the entire emitting electrode together with the first substrate, and made of a dielectric material; and an insulating material layer disposed to cover the entire grounding electrode together with the first substrate and insulating a living body in which the planar inverted-F antenna is implanted from the grounding electrode, wherein the dielectric constant of the insulating material layer is lower than the dielectric constants of the first substrate and the second substrate.