Invention Grant
US07831215B2 Tranceiver circuit for compensating IQ mismatch and carrier leakage and method for controlling the same
有权
用于补偿IQ失配和载波泄漏的收发器电路及其控制方法
- Patent Title: Tranceiver circuit for compensating IQ mismatch and carrier leakage and method for controlling the same
- Patent Title (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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Application No.: US11708705Application Date: 2007-02-21
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Publication No.: US07831215B2Publication Date: 2010-11-09
- Inventor: Joonbae Park , Kyeongho Lee
- Applicant: Joonbae Park , Kyeongho Lee
- Applicant Address: KR Shindaebang Dong, Dongjak Gu, Seoul
- Assignee: GCT Research, Inc.
- Current Assignee: GCT Research, Inc.
- Current Assignee Address: KR Shindaebang Dong, Dongjak Gu, Seoul
- Agency: Muir Patent Consulting, PLLC
- Priority: KR10-2006-0017522 20060223
- Main IPC: H04B1/40
- IPC: H04B1/40
Abstract:
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.
Public/Granted literature
- US20070202812A1 Tranceiver circuit for compensating IQ mismatch and carrier leakage and method for controlling the same Public/Granted day:2007-08-30
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