Invention Grant
US08401510B2 Common-gate common-source transconductance stage for RF downconversion mixer
有权
用于RF下变频混频器的共栅共源极跨导级
- Patent Title: Common-gate common-source transconductance stage for RF downconversion mixer
- Patent Title (中): 用于RF下变频混频器的共栅共源极跨导级
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Application No.: US12859533Application Date: 2010-08-19
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Publication No.: US08401510B2Publication Date: 2013-03-19
- Inventor: Yue Wu
- Applicant: Yue Wu
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Eric Ho
- Main IPC: H04B1/26
- IPC: H04B1/26

Abstract:
In an embodiment, a method and apparatus for downconverting a received RF signal in a wireless device where differential signals from an off-chip matching network may be input to a CGCS input stage of a mixer, which downconverts the signals to baseband or some intermediate frequency. The input stage includes a pair of NMOS transistors in a common-gate configuration and a pair of PMOS transistors in a common-source configuration. A potential advantage of the CGCS input stage over the existing CGO transconductance stage configuration is that by adding a common-source stage through the PMOS differential-pair, the transconductance gain is decoupled from the high Q matching network.
Public/Granted literature
- US20100323655A1 COMMON-GATE COMMON-SOURCE TRANSCONDUCTANCE STAGE FOR RF DOWNCONVERSION MIXER Public/Granted day:2010-12-23
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