公开(公告)号：EP4170908A1

公开(公告)日：2023-04-26

申请号：EP22202791.4

申请日：2022-10-20

Applicant: RichWave Technology Corp.

Inventor： Chen, Chih-Sheng ,  Chu, Yu-Hsiang

IPC: H03K17/693 ,  H03K17/00 ,  H04B1/00

Abstract: A radio frequency switch (1, 10, 20) has an antenna end (110), a first signal end (110), a second signal end (120), a third signal end (130), a first series path (A1) having a first switch (M1), a second series path (A2) having a second switch (M2), a third series path (A3) having a third switch (M3), a first shunt path (B1) coupled between the first signal end (110) and a node (N1), a second shunt path (B2) coupled between the second signal end (120) and the node (N1), a common path (140) coupled between the node (N1) and a first reference voltage end (GND1), and a third shunt path (B3) coupled between the third signal end (130) and a second reference voltage end (GND2). The first series path (A1) and the second series path (A2) are connected to a common ground pad via the common path (140).