Layer-built plate antenna coil

Abstract

Abstract PURPOSE:To make an antenna coil small-sized and thin, by producing a layer- built plate antenna coil in the lamination method. CONSTITUTION:An insulator layer, a magnetic material pattern, and a coil forming conductive pattern are laminated to form the primary and the secondary coils having the shape of a circular winding where end parts of the coil forming conductive pattern overlap with each other and are connected, thereby forming a plane-plate layer-built material. Respective terminals of the primary and the secondary coils are exposed to the surface of the layer-buit material to form external connection terminals 27F, 27S, 28F and 28S. Consequently, the antenna coil is not only small-sized but also very thin, and a magnetic path length (l) is very short, and the rectangular sectional area surrounded with the primary and the secondary coils is made larger considerably, and therefore, its conductance is increased.

Inventors

• 👤 Minoru Takatani
• 👤 稔 高谷

Bibliographic Details