Eye Diagram Generation Algorithm Based on Vector Network Analyzer

With the development of 5G communication technology, many communication devices or circuits need to be tested in several GHz or tens of GHz frequency bands. The characteristics of interconnected devices become more complex as the signal transmission rate increases, so the ability to maintain signal integrity has to be considered, and to maximize the device characteristics, it is necessary to obtain time-frequency domain information at the same time. In order to solve this problem, this paper presents an algorithm of converting S-parameter measured by vector network analyzer into time domain, and then generating eye diagram, which can be used to analyze the ability of signal transmission and obtain time domain information. In the experiment, S-parameters were measured by ADS simulation and vector network analyzer, and the clear open eye diagram is obtained, which verifies the correctness of the algorithm and the feasibility of the algorithm is proved.