发明名称 |
DEVICES OF IQ MISMATCH CALIBRATION, AND METHODS THEREOF |
摘要 |
A device with IQ mismatch compensation, having a transmitter oscillator, for providing an oscillator signal, a transmitter module, for up-converting a transmitter signal with the oscillator signal to generate an RF signal, and a loop-back module, for down-converting the RF signal with the oscillator signal to determine a transmitter IQ mismatch parameter, wherein effects of IQ mismatch of the loop-back module are calibrated by inputting a test signal and the oscillator signal before the down-converting of the RF signal. The transmitter module is arranged to reduce effects of IQ mismatch of a transmitter path in the transmitter module according to the determined transmitter IQ mismatch parameter. |
申请公布号 |
US2014376660(A1) |
申请公布日期 |
2014.12.25 |
申请号 |
US201414479453 |
申请日期 |
2014.09.08 |
申请人 |
MediaTek Inc. |
发明人 |
CHEN Hsin-Hung;CHANG Hsiang-Hui |
分类号 |
H04L27/36 |
主分类号 |
H04L27/36 |
代理机构 |
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代理人 |
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主权项 |
1. A device with IQ mismatch compensation, comprising:
a transmitter oscillator, for providing an oscillator signal; a transmitter module, for up-converting a transmitter signal with the oscillator signal to generate an RF signal; and a loop-back module, for down-converting the RF signal with the oscillator signal to determine a transmitter IQ mismatch parameter, wherein effects of IQ mismatch of the loop-back module are calibrated by inputting a test signal and the oscillator signal before the down-converting of the RF signal; and wherein the transmitter module is arranged to reduce effects of IQ mismatch of a transmitter path in the transmitter module according to the determined transmitter IQ mismatch parameter. |
地址 |
Hsin-Chu TW |