Systems and methods for simultaneously measuring forward and reverse scattering parameters

A method for measuring electrical performance of a device under test (DUT) having two or more ports, comprising:

• using a system including
• a plurality of signal sources each connectable with an associated port of the two or more ports of the DUT,
• a plurality of first signal paths each connectable with an associated port for obtaining reflected and transmitted signals simultaneously received from the DUT at the associated port,
• a plurality of second signal paths each connectable with an associated port for obtaining incident signals received from the signal source connected with the associated port, and
• a receiver for receiving the reflected, transmitted and incident signals obtained at the first signal paths and the second signal paths;
• simultaneously generating synchronized signals via the plurality of signal sources;
• wherein each synchronized signal has a frequency offset from each of the others of the synchronized signals by a known frequency delta;
• transmitting the simultaneously generated synchronized signals to the DUT;
• obtaining transmitted and reflected signals from the DUT via the first signal paths;
• obtaining incident signals from the signal sources via the second signal paths;
• receiving the transmitted, reflected and incident signals at the receiver;
• and
• measuring electrical performance based on the transmitted, reflected and incident signals received by the receiver.

A non-transitory computer readable storage medium, including instructions stored thereon which when read and executed by one or more computers cause the one or more computers to perform the steps comprising:

• use a system including
• a plurality of signal sources each connectable with an associated port of the two or more ports of the DUT,
• a plurality of first signal paths each connectable with an associated port for obtaining reflected and transmitted signals simultaneously received from the DUT at the associated port,
• a plurality of second signal paths each connectable with an associated port for obtaining incident signals received from the signal source connected with the associated port, and
• a receiver for receiving the reflected, transmitted and incident signals obtained at the first signal paths and the second signal paths;
• simultaneously generate synchronized signals via the plurality of signal sources;
• wherein each synchronized signal has a frequency offset from each of the others of the synchronized signals by a known frequency delta;
• transmit the simultaneously generated synchronized signals to the DUT;
• obtain transmitted and reflected signals from the DUT via the first signal paths;
• obtain incident signals from the signal sources via the second signal paths;
• receive the transmitted, reflected and incident signals at the receiver;
• and
• measure electrical performance based on the transmitted, reflected and incident signals received by the receiver.