PHASE MISMATCH COMPENSATION DEVICE
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United States of America Patent
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Issued Date -
Aug 19, 2010
app pub date -
Feb 18, 2009
filing date -
Feb 18, 2009
priority date (Note) -
Abandoned
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Abstract
A phase mismatch compensation device comprises a first low pass filter unit, a second low pass filter unit and a phase compensation unit. The first low pass filter unit comprises a first input unit transferring the I-channel analog input signal to an input terminal of a first OP-amp, and the first self-feedback unit transferring the I-channel output signal to the input terminal of the first OP-amp. The second low pass filter unit comprises the second input unit transferring the Q-channel analog input signal to an input terminal of a second OP-amp, and a second self-feedback unit transferring the Q-channel output signal to the input terminal of the second OP-amp. The phase compensation unit comprises a first compensation unit transferring the Q-channel analog input signal to the input terminal of the first OP-amp, and a second compensation unit transferring the I-channel analog input signal to the input terminal of the second OP-amp.
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