Invention Grant
US08559488B1 On-chip IQ imbalance and LO leakage calibration for transceivers
有权
用于收发器的片上IQ不平衡和LO泄漏校准
- Patent Title: On-chip IQ imbalance and LO leakage calibration for transceivers
- Patent Title (中): 用于收发器的片上IQ不平衡和LO泄漏校准
-
Application No.: US13611808Application Date: 2012-09-12
-
Publication No.: US08559488B1Publication Date: 2013-10-15
- Inventor: Lydi Smaini , Neric Fong , Sang Won Son , Bo Wang
- Applicant: Lydi Smaini , Neric Fong , Sang Won Son , Bo Wang
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: H04B1/38
- IPC: H04B1/38

Abstract:
The disclosure can provide methods and systems for autocalibrating a transceiver. The method can include upconverting a bandpass input signal by mixing the bandpass input signal with a first local oscillator signal to form an initial transmitter signal. The initial transmitter signal can be looped back to a receiver and downconverted with a second local oscillator signal having a frequency that is different from the first local oscillator to form an intermediate frequency signal. At least one of a gain and a phase of the transmitter can be adjusted based on a transmitter image sideband of the intermediate frequency signal to generate a calibrated transmitter signal having minimized transmitter image sideband.
Information query