Directional coupler and radio-frequency module
AssigneeMurata Manufacturing Co., Ltd.
InventorsYosuke Matsushita, Atsushi Kuribara
Life of this patent
Estimating the term…
Abstract
A directional coupler includes an element body that is insulating, and a main line and a secondary line both disposed in the element body and being conductive. The directional coupler has a mount surface positioned on a mounted side when the directional coupler is mounted. A first line portion of the main line and a second line portion of the secondary line are electromagnetically coupled to each other. The first line portion has a thickness smaller than a line width of the first line portion, and is disposed in the element body in such a manner that an axis along a thickness direction of the first line portion does not intersect the mount surface.
Claims15
A directional coupler comprising:
- an element body that is insulating;
- and
- a main line and a secondary line both disposed in the element body and being conductive,
- wherein the directional coupler has a mount surface positioned on a mounted side when the directional coupler is mounted;
- a first line portion of the main line and a second line portion of the secondary line are electromagnetically coupled to each other;
- and
- the first line portion has a thickness smaller than a line width of the first line portion, and is disposed in the element body in such a manner that an axis along a thickness direction of the first line portion does not intersect the mount surface,
- wherein the mount surface has a pair of first mounting terminals connected to respective ends of the main line, and a pair of second mounting terminals connected to respective ends of the secondary line, and
- wherein the pair of first mounting terminals and the pair of second mounting terminals are disposed on the mount surface and embedded from the mount surface into the element body.
Dependencies are inferred from the claim text.