RF receiver mismatch calibration system and method

Details RF receiver mismatch calibration system and method RF receiver mismatch calibration system and method

2007-08-07

2007-08-07

Nguyen, Duc M. (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

C455S304000, C455S312000, C455S067110, C455S067130, C375S346000

Reexamination Certificate

active

10887702

ABSTRACT:
A calibration system for an RF system that includes an RF receiver capable of operating in a normal mode and in a calibration mode. The calibration system includes a phase delay unit provided on at least one of an I channel output and a Q channel output of the RF receiver. The system further includes a phase detector configured to detect a phase difference between the I channel output of the RF receiver and the Q channel output of the RF receiver. The system also includes a calibration control unit configured to provide a digital calibration control signal to the RF receiver based on the phase difference as provided by the phase detector.

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