The antenna coil can be an axial coil or a tilted coil.

The coil includes a first coil section and a second coil section.

The coil assembly has a coil base and a coil located in a cavity in the coil base.

An inductive coupled coil or an inductive coupled plasma device using the same comprises an internal coil and an exterior coil.

A common mode choke coil is provided with a primary coil (L1) and a secondary coil (L2).

The dual inductor circuit comprises an inductor-within-inductor design in which a small inductor is disposed within a large inductor.

The transfer unit further comprises a primary coil (N0), a first secondary coil (N1) and a second secondary coil.

The local coil includes an RF coil (50) with a plurality of coil elements (501, 50n ).

The primary coil includes at least one butterfly coil.

The transformer includes a first coil and a second coil.

The antenna construction comprises a receiving coil at a certain distance from the transmitting coil, and a compensating coil closer to a transmitting coil.

A lead part (25) of a heater coil (22) is constituted of a single coil wound like a coil, and a bead part (24) is constituted of a coiled-coil formed by further winding the single coil like a coil.

In a specific embodiment, the first coil is a compressor (120) coil and the second coil is a displacer (30) coil.

In the coil part (L), one coil is divided by an intermediate tap (Tap), forming the primary coil (L1) and a charging coil (LCH).

Said voice coil (20) comprises a coil (21) and a cylindrical coil frame (22), and said coil (21) is wound on a peripheral surface of the coil frame (22).