Invention Grant
- Patent Title: Passive mixer having transconductance amplifier with source degeneration capacitance
- Patent Title (中): 无源混频器具有源极退化电容的跨导放大器
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Application No.: US11865368Application Date: 2007-10-01
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Publication No.: US07688130B2Publication Date: 2010-03-30
- Inventor: Shaorui Li , Jinghong Chen , Lawrence Rigge
- Applicant: Shaorui Li , Jinghong Chen , Lawrence Rigge
- Applicant Address: US PA Allentown
- Assignee: Agere Systems Inc.
- Current Assignee: Agere Systems Inc.
- Current Assignee Address: US PA Allentown
- Agency: Mendelsohn, Drucker, & Associates, P.C.
- Agent Edward J. Meisarosh; Steve Mendelsohn
- Main IPC: G06F7/44
- IPC: G06F7/44
Abstract:
A passive mixer includes a transconductance amplifier having a source degeneration capacitance. The transconductance amplifier has an input for receiving an input signal and an output for outputting a current signal. A multiplier is provided for mixing a local oscillator signal with the current signal so as to provide an output signal at an output of the passive mixer. A capacitive load is connected to the output of the passive mixer.
Public/Granted literature
- US20090085642A1 PASSIVE MIXER HAVING TRANSCONDUCTANCE AMPLIFIER WITH SOURCE DEGENERATION CAPACITANCE Public/Granted day:2009-04-02
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