dc offset in dcr

How can I measure DC offset in DCR?
If DC offset effect my RX,which one test item can know.(ex:IQ-inbalance?)
Please help me,Thank you!

There are at least two DC currents created into DCR. If you are talking about DC current that created into mixer itself and change its balance then IQ imbalance may be good value to check.

suggest you studying this book
IQ Calibration Techniques for CMOS Radio Transciver_ Springer-2006-9-22

this problem need IQ to solve it .
best wishes

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