Invention Grant
- Patent Title: High-frequency module, transmission-reception module, and communication apparatus
-
Application No.: US16451522Application Date: 2019-06-25
-
Publication No.: US10608694B2Publication Date: 2020-03-31
- Inventor: Hideki Muto
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Kyoto
- Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee Address: JP Kyoto
- Agency: Pearne & Gordon LLP
- Priority: JP2016-254344 20161227
- Main IPC: H04B1/38
- IPC: H04B1/38 ; H04B1/525 ; H03F3/189 ; H03H7/38

Abstract:
A high-frequency module (20) includes a reception-side filter (21) that uses a first frequency band as a pass band and a second frequency band as an attenuation band, an LNA (23), and a matching circuit (22) disposed between the reception-side filter (21) and the LNA (23). In a Smith chart, the matching circuit (22) makes an interval between impedance in the second frequency band of the reception-side filter (21) and a second gain circle center point indicating impedance at which gain in the second frequency band of the LNA (23) is maximized greater than an interval between impedance in the first frequency band of the reception-side filter (21) and a first gain circle center point indicating impedance at which gain in the first frequency band of the LNA (23) is maximized.
Public/Granted literature
- US20190312608A1 HIGH-FREQUENCY MODULE, TRANSMISSION-RECEPTION MODULE, AND COMMUNICATION APPARATUS Public/Granted day:2019-10-10
Information query