| 摘要 |
Provided is a circuit board including an air core coil including a winding portion having a conductive wire wound in a helical shape, a first lead portion extending from an end of the winding portion, and a second lead portion extending from another end of the winding portion, wherein the first lead portion and the second lead portion extend in different directions from each other on a substantially same plane, and a coil mounting portion including an opening to accommodate the winding portion, a first conductive part provided on a periphery of the opening and contacting the first lead portion, and a second conductive part provided on the periphery of the opening and contacting the second lead portion. |
