Patent ID: 11894597
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A directional coupler comprising:
a substrate having a first principal surface and a second principal surface opposing each other;
a main line comprised of a conductor pattern provided in or on the substrate; and
a first sub-line and a second sub-line each comprised of a conductor pattern provided in or on the substrate, and connected in parallel to each other,
wherein the main line is disposed at a position at least partially overlapping with the first sub-line or the second sub-line in a plan view when seen in a thickness direction orthogonal to the first principal surface and the second principal surface,
the first principal surface is a connection surface to another substrate to which a high frequency signal detected by the directional coupler is transmitted, and
the first main line is disposed closer to a side of the first principal surface than the first sub-line.