公开(公告)号：US10972067B2

公开(公告)日：2021-04-06

申请号：US16719260

申请日：2019-12-18

申请人： TAIYO YUDEN CO., LTD.

发明人： Jaeho Jeong ,  Shuei Hashimoto ,  Naoyuki Tasaka ,  Sachiko Tanaka ,  Makoto Inoue

IPC分类号： H03H7/01

摘要： A filter includes: a substrate; input and output terminals located on the substrate; a resonant circuit located in a series pathway between the input and output terminals; a first component including a first inductor, which is electrically connected between a first node in the series pathway and a ground, and mounted in a first region on the substrate; a second component including a second inductor, which is electrically connected between a second node different from the first node in the series pathway and a ground, and mounted in a second region different from the first region on the substrate; and a third component including an acoustic wave resonator, which is electrically connected between a third node between the first and second nodes in the series pathway and a ground, and mounted in a third region between the first and second regions on the substrate.