| 摘要 |
PROBLEM TO BE SOLVED: To provide a film-type antenna which can constitute a metal circuit having a low resistance value and providing improved antenna performance, enables circuit width thereof to be suppressed to a specified level or under, to maintain transparency of films and proper appearance, and can be produced easily and at low cost, without requiring high-accuracy metal mold or plotter. SOLUTION: An antenna circuit 10 is configured, by arranging a recessed groove 3 extending along an antenna circuit forming position on the surface of a film substrate 2 and fitting an electric wire 4, constituted of a metal wire material into the recessed groove 3. The film substrate 2 is constituted of an antenna film layer 21, an adhesive layer 22, a core film layer 23, an adhesive layer 24, and a release paper layer 25 and the electric wire 4 is stuck and fixed on the adhesive layer 22 at the bottom part of the recessed groove 3. COPYRIGHT: (C)2008,JPO&INPIT
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