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Get precise control of the amplitude and phase of stimulus signals to test multiple input devices

Get precise control of the amplitude and phase of stimulus signals to test multiple input devices
By John Eckert, Agilent Technologies
In many types of multi-input device, accurate testing requires accurate control of the amplitude and phase of all stimulus signals applied to the unit under test (UUT) inputs.
Some examples are phased array radar systems and multiple input/output (MIMO) devices used in business communications and wireless networks. In these applications, precise control makes it possible to accurately simulate parameters such as angles of arrival of incident signals.