Invention Grant
- Patent Title: Duplexer
- Patent Title (中): 双工器
-
Application No.: US13551853Application Date: 2012-07-18
-
Publication No.: US08368486B2Publication Date: 2013-02-05
- Inventor: Tetsuya Tsurunari , Hiroyuki Nakamura , Joji Fujiwara
- Applicant: Tetsuya Tsurunari , Hiroyuki Nakamura , Joji Fujiwara
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2007-257302 20071001; JP2008-113564 20080424
- Main IPC: H03H9/00
- IPC: H03H9/00 ; H03H9/25

Abstract:
A duplexer includes an acoustic wave element having a first terminal and a second terminal; a substrate; a first columnar conductor electrically connected to the first terminal, and drawn to a back surface of the substrate while partially in the substrate; a second columnar conductor electrically connected to the second terminal, and drawn to the back surface of the substrate while partially in the substrate. Additionally, a first ground pattern region is between the first columnar conductor drawn part and the second columnar conductor drawn part on the back surface of the substrate; a second ground pattern region is electrically connected to the first ground pattern region and arranged in the part not including the part between the first columnar conductor drawn part and the second columnar conductor drawn part; and a third columnar conductor electrically is connected to the first ground pattern region while partially in the substrate.
Public/Granted literature
- US20120326801A1 DUPLEXER Public/Granted day:2012-12-27
Information query