Invention Grant
US08971219B2 Hybrid transformer based integrated duplexer for multi-band/multi-mode radio frequency (RF) front end
有权
用于多频/多模射频（RF）前端的混合变压器综合双工器
- Patent Title: Hybrid transformer based integrated duplexer for multi-band/multi-mode radio frequency (RF) front end
- Patent Title (中): 用于多频/多模射频（RF）前端的混合变压器综合双工器
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Application No.: US13735795Application Date: 2013-01-07
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Publication No.: US08971219B2Publication Date: 2015-03-03
- Inventor: Ojas M. Choksi
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent James Gutierrez
- Main IPC: H04L5/14
- IPC: H04L5/14 ; H03H7/46 ; H03H7/09 ; H04B1/44
Abstract:
An integrated duplexer based on electrical balance is described. The duplexer module includes a hybrid transformer. The hybrid transformer includes a primary coil and a secondary coil. The primary coil is coupled between an output of a power amplifier and an antenna. The secondary coil is coupled between an input of a low noise amplifier and ground. The duplexer also includes a balancing impedance that is coupled between the primary coil and the secondary coil.
Public/Granted literature
- US20130258911A1 HYBRID TRANSFORMER BASED INTEGRATED DUPLEXER FOR MULTI-BAND/MULTI-MODE RADIO FREQUENCY (RF) FRONT END Public/Granted day:2013-10-03
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