Invention Grant
- Patent Title: Low phase noise voltage controlled oscillator
- Patent Title (中): 低相位噪声压控振荡器
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Application No.: US12557369Application Date: 2009-09-10
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Publication No.: US07961056B2Publication Date: 2011-06-14
- Inventor: Stewart S. Taylor , Diptendu Ghosh
- Applicant: Stewart S. Taylor , Diptendu Ghosh
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Thorpe North & Western LLP
- Main IPC: H03B5/00
- IPC: H03B5/00 ; H03B5/08 ; H03B5/12 ; H03L3/00 ; H03L5/00 ; H03L5/02 ; H03L7/24 ; H04B1/06 ; H04B1/10

Abstract:
Embodiments of the present invention include a low phase noise oscillator circuit using a current-reuse technique to reduce power consumption and improve phase noise, where the oscillator circuit comprises a first VCO coupled to a second VCO, and the outputs of the first and second VCOs are coupled with passive elements, such as capacitors. The overall power consumption of both the first and second VCOs is about the same as a single VCO. Furthermore, the phase noise is lowered by around 3 dB. Thus, the phase noise performance is improved without increasing the power consumption of the oscillator circuit.
Public/Granted literature
- US20110057732A1 LOW PHASE NOISE VOLTAGE CONTROLLED OSCILLATOR Public/Granted day:2011-03-10
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