| 摘要 |
PROBLEM TO BE SOLVED: To provide a coil antenna with a high degree of shape deformation by suppressing an external effect such as a body effect in a closed loop antenna to the utmost and eliminating or reducing coupling between a feeder and a solenoid coil. SOLUTION: The coil antenna 10A is provided with: a dielectric body 11 having a feeder line hole h formed along a center axis; the solenoid coil 12 coaxially formed to the surface of the dielectric body 11 with respect to the center axis; and a feeder 13 inserted through the feeder line hole h from one end of the solenoid coil 12 and led to the other end of the solenoid coil 12, and a led-out tip of the feeder 13 and the other end of the solenoid coil 12 form closed loop terminals a, b. COPYRIGHT: (C)2004,JPO
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