发明申请
- 专利标题: Tranceiver circuit for compensating IQ mismatch and carrier leakage and method for controlling the same
- 专利标题(中): 用于补偿IQ失配和载波泄漏的收发器电路及其控制方法
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申请号: US11708705申请日: 2007-02-21
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公开(公告)号: US20070202812A1公开(公告)日: 2007-08-30
- 发明人: Joonbae Park , Kyeongho Lee
- 申请人: Joonbae Park , Kyeongho Lee
- 优先权: KR10-2006-0017522 20060223
- 主分类号: H04B1/38
- IPC分类号: H04B1/38 ; H04B1/40
摘要:
Embodiments of methods, transceiver circuits, and systems can compensate an IQ mismatch (e.g., Tx or Rx) or a carrier leakage using a plurality of local oscillators. One embodiment of a transceiver can include a first up-conversion IQ mixer, a second up-conversion IQ mixer, a first down-conversion IQ mixer with an input to receive an output of the second up-conversion IQ mixer, a second down-conversion IQ mixer with an input to receive an output of the first up-conversion IQ mixer, a first local oscillator to generate a first IQ LO signal for the first up-conversion IQ mixer and the first down-conversion IQ mixer, and a second local oscillator to generate a second IQ LO signal for the second up-conversion IQ mixer and the second down-conversion IQ mixer.
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