Patent ID: 8008933
Filing Date: 2011-08-30
Classification: H04L

Abstract:
1. A method for baseband I/Q calibration, comprising: calibrating signals from one of at least one of a first generator one of receiving and transmitting analog signals and at least two of a second generator one of receiving and transmitting digital signals using a load board including a direct path for each of the analog signals between the at least one of the first generator and a corresponding number of devices under test and for each of the digital signals between the at least two of the second generator and a corresponding number of devices under test; digitizing one of the analog signals and the digital signals that are in waveform; determining a phase imbalance to be converted from degrees to a unit of time; assigning the unit of time to one of an I and Q trigger delay as a function of the polarity of the phase imbalance.