公开(公告)号：US20240387969A1

公开(公告)日：2024-11-21

申请号：US18661108

申请日：2024-05-10

Applicant: TDK CORPORATION

Inventor： Shuhei SAWAGUCHI ,  Tetsuzo Goto ,  Yuto Ashida ,  Masahiro Tatematsu ,  Keigo Shibuya ,  Tomonori Terui

IPC: H01P1/203

Abstract: A filter includes: a first ground conductor layer and a second ground conductor layer arranged to be spaced from each other, a resonator conductor layer arranged between the first ground conductor layer and the second ground conductor layer and constituting a part of a resonator, a through hole connecting the first ground conductor layers and the resonator conductor layer and constituting a different part of the resonator, and a body. The resonator conductor layer is not directly connected to the second ground conductor layer.