| 摘要 |
<p>A print coil device for a double tuning circuit includes an insulator substrate (15), a first substantially spiral metallic foil pattern (12a) formed on a first face of substrate (15), and a second substantially spiral metallic foil pattern (13a) formed on a second face of substrate (15), wherein first and second spiral metallic foil patterns (12a, 13a) are not electrically connected with each other, and at least respective portions of first and second spiral metallic foil patterns (12a, 13a) are overlapped with each other with substrate (15) interposed therebetween so as to provide a mutual electromagnetic coupling. <IMAGE></p> |
