| 摘要 |
PROBLEM TO BE SOLVED: To provide a dipole or monopole antenna device capable of obtaining sharp miniaturization. SOLUTION: In a dipole antenna device 1, a plurality of flat coils 3a and 3b, and 4a and 4b are connected in which conductors form closed areas in the plan view in a magnetic field area in the vicinity of a power supply portion 2. Capacitors 5 and 6 as radiation conductors are connected to both ends of the antenna device 1, respectively. Resonant current radiation is performed from the capacitors 5 and 6 at the antenna ends, and magnetic line of force radiation is performed from the flat coils 3a and 3b, and 4a and 4b in the vicinity of the power supply portion 2. COPYRIGHT: (C)2009,JPO&INPIT
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