| 摘要 |
<p>PURPOSE: To obtain a production method of flexible magnetic antenna core with low loss and having sufficiently high Q and the antenna core. CONSTITUTION: A long and slender strip body of a plurality of chain consisting of soft magnetic material having a highμ, mutually insulated and extending in vertical direction is formed. The chain constituting the strip body can be constituted of a powder permanent chain made of soft magnetic material having highμ, thin wire of magnetic soft iron covered with an insulation layer, or mutually insulated amorphous alloy having vertical direction coinciding with magnetic field direction. By winding an electric coil. around the flexible antenna core constituted in strip shape or stack state, a flexible antenna is obtained. As the plurality of chains mutually insulated are vertically arranged, the generation of eddy current in magnetic field can be sufficiently suppressed.</p> |
