| 摘要 |
<p>The arrangement (10) has a laminated structure coaxially arranged from inside to outside. The structure comprises a magnetic high frequency non conducting core (14) functioning as a carrier for coil windings (16) attached to the core, insulator (18) and a shield made of magnetically non conducting material (20) e.g. aluminum or copper. The core comprises guide grooves for adjusting the coil windings, and a recess (24) for closing the coil windings, where core has a hollow, cylindrical or truncated conical shape.</p> |
