High precision RF vector analysis system based on synchronous sampling
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United States of America Patent
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May 20, 1997
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N/A
app pub date -
Mar 23, 1995
filing date -
May 31, 1993
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Abstract
The signals to be measured are transformed in the system to discrete time digital signals by synchronous sampling. These digital signals are then processed by a digital signal processor for vector detection and for computing digital feedback sent to the sampling gates. The analyzer has improved characteristics in the area of linearity, drift and test port signal injection because of its highly optimized architecture based on synchronous sampling with digital feedback. It possesses unique characteristics such as the ability to tune to a harmonic or a subharmonic of the excitation frequency and a good sensitivity in a high impedance environment.
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