De-embedding of board parasitics with T-parameters for S-parameter measurements of integrated circuits on PCB -examinations in one-port measurements-

In this paper, the authors evaluate T-matrix extraction method. The method is de-embedding DUT by T-matrix from actual measurement comprising both the parasitics and DUT. The proposed method were more accurate than that by the port-extension function. Result for different trace pattern gave similar results for RC series circuit up to 2 GHz. The calculated MSL parameter also gave consistent result for the RC series circuit up to 2 GHz. It was, however, found that an enough accurate calculation model is necessary to assure a reliable result.