US 11,984,638 B2
Directional coupler
Kenta Seki, Kyoto (JP); Ryangsu Kim, Kyoto (JP); and Kazuhito Osawa, Kyoto (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto (JP)
Filed on Aug. 30, 2021, as Appl. No. 17/461,099.
Claims priority of application No. 2020-148700 (JP), filed on Sep. 4, 2020.
Prior Publication US 2022/0077560 A1, Mar. 10, 2022
Int. Cl. H01P 5/18 (2006.01); H03H 7/01 (2006.01); H03H 1/00 (2006.01)
CPC H01P 5/187 (2013.01) [H01P 5/188 (2013.01); H03H 2001/0085 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A directional coupler comprising:
a multilayer body comprising a first insulating layer with a first main surface and a second insulating layer arranged facing the first main surface;
a first conductor that is arranged in the first insulating layer and that has a first shape; and
a second conductor that is arranged on a side of the second insulating layer opposite the first insulating layer, that runs parallel to the first conductor, and that is electromagnetically coupled to the first conductor,
wherein the second conductor has:
a winding shape with one or more rounds, and
a first portion and a second portion that extend parallel to each other in a parallel running direction, and that are arranged adjacent to each other in a direction orthogonal to the parallel running direction,
wherein in a plan view of the multilayer body, the first conductor is arranged between the first portion and the second portion, and
wherein the first portion comprises two parallel members and the second portion comprises two parallel members, the parallel members of the second portion being between the parallel members of the first portion.