Invention Application
- Patent Title: AN IMPROVED HARTLEY VOLTAGE CONTROLLED OSCILLATOR
- Patent Title (中): 改进的HARTLEY电压控制振荡器
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Application No.: PCT/SE2007/050674Application Date: 2007-09-25
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Publication No.: WO2009041868A1Publication Date: 2009-04-02
- Inventor: BAO, Mingquan
- Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ) , BAO, Mingquan
- Applicant Address: Stockholm S-164 83 Stockholm SE
- Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ),BAO, Mingquan
- Current Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ),BAO, Mingquan
- Current Assignee Address: Stockholm S-164 83 Stockholm SE
- Agency: AROS PATENT AB
- Main IPC: H03B5/12
- IPC: H03B5/12
Abstract:
In a Hartley voltage controlled oscillator ( VCO ) circuit comprising two inductors ( L d , L g ), a transistor ( Q1 ) and a varactor (C), the two inductors ( L d , L g ) are arranged as a coupled inductor pair to enable positive mutual inductance ( M ) between them and reduce the size of the VCO.
Information query
