发明名称 |
Hybrid DC-offset reduction method and system for direct conversion receiver |
摘要 |
A hybrid structure circuit for the cancellation of both Type-I and Type-II DC offsets. It comprises a static compensator in conjunction with a servo-loop feedback amplifier to suppress the undesired DC components present along the path of the base band after the direct conversion mixer. Two mixers are used to down convert a received RF signal directly to a base band signal with two components: in-phase and quadrature-phase. Both in-phase and quadrature-phase branches employ the same circuitry for DC offset cancellation. Miller effect is also utilized in the structure in order to implement the circuit on-chip.
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申请公布号 |
US7933361(B2) |
申请公布日期 |
2011.04.26 |
申请号 |
US20060399127 |
申请日期 |
2006.04.05 |
申请人 |
INTEGRATED SYSTEM SOLUTION CORP. |
发明人 |
HUANG KUANG-HU;PENG WEI-CHUNG;CHUAN CHIA-SO |
分类号 |
H03K9/00;H04L27/00 |
主分类号 |
H03K9/00 |
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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