发明名称 |
Coupling for LC-based VCO |
摘要 |
A two-stage coupling loop system that provides in-phase and quadrature signals in two stages. Each stage includes a signal coupler, an LC-based voltage controlled oscillator (VCO) and in-loop signal buffer that provides an additional controllable phase shift. Inclusion of the buffers in the loop decreases the capacitance load of each VCO. |
申请公布号 |
US6492877(B1) |
申请公布日期 |
2002.12.10 |
申请号 |
US20010927289 |
申请日期 |
2001.08.09 |
申请人 |
LATTICE SEMICONDUCTOR CORPORATION |
发明人 |
CHAN EDWIN;QU MING;ZHAO JI |
分类号 |
H03B5/12;(IPC1-7):H03B5/18 |
主分类号 |
H03B5/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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