WIRE-WOUND COIL AND METHOD FOR MANUFACTURING WIRE-WOUND COIL

摘要

A wire-wound coil has a characteristic impedance that can be flexibly adjusted and can be prevented from varying undesirably. In the coil of the present invention, a primary wire part 18A and a secondary wire part 18B are wound around the surface of a core portion 14 so as to be separated from each other by a fixed distance. At the same time, at least one portion the secondary wire part 18B in a prior turn section 19X and at least one portion of the primary wire part 18A in a subsequent turn section 19Y are in close contact with each other, wherein the wire parts 18A and 18B are wound in different turns and are adjacent to each other on the same surface of the core portion 14. A method for manufacturing the wire-wound coil is also disclosed.