Directional coupler

摘要

A directional coupler for use in a predetermined frequency band includes a laminate body including a laminate of a plurality of insulation layers, a first terminal through a fourth terminal disposed on a surface of the laminate body, a main line connected between the first terminal and the second terminal and disposed on the insulation layer, a first sub-line connected to the third terminal, electromagnetically coupled with the main line, and disposed on the insulation layer, a second sub-line connected to the fourth terminal, electromagnetically coupled with the main line, and disposed on the second sub-line, and a phase adjusting circuit connected between the first sub-line and the second sub-line and configured to cause a phase shift on a passing signal. The main line, the first sub-line and the second sub-line do not overlap each other in a plan view from a direction of lamination.

主权项

1. A directional coupler for use in a predetermined frequency band, comprising:
a laminate body including a laminate of a plurality of insulation layers; a first terminal through a fourth terminal disposed on a surface of the laminate body; a main line connected between the first terminal and the second terminal and disposed on at least one of the insulation layers; a first sub-line disposed on at least one of the insulation layers, connected to the third terminal, and electromagnetically coupled with the main line; a second sub-line disposed on at least one of the insulation layers, connected to the fourth terminal, and electromagnetically coupled with the main line; and a phase adjusting circuit connected between the first sub-line and the second sub-line and configured to cause a phase shift in a passing signal, wherein the main line, the first sub-line and the second sub-line do not overlap each other in a plan view from a direction of lamination.