Receiving circuit and method for compensating IQ mismatch

Details Receiving circuit and method for compensating IQ mismatch Receiving circuit and method for compensating IQ mismatch

2011-04-12

2011-04-12

Nguyen, Simon D (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Having measuring, testing, or monitoring of system or part

C455S067140, C455S226100, C455S296000

Reexamination Certificate

active

07925217

ABSTRACT:
Embodiments of methods receiving circuits and apparatuses compensate for an IQ mismatch using a test signal positioned in a guard band. One embodiment of a method can include converting a sum of a received signal and a test signal positioned in a guard band to a first signal and a second signal of an intermediate frequency or a base band using an IQ mixer, detecting the IQ mismatch using the test signal respectively included in subsequent signals corresponding to the first signal and the second signal and compensating for the detected IQ mismatch using the IQ mismatch.

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