Method and apparatus for testing RF devices
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United States of America Patent
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Dec 3, 1996
Grant Date -
N/A
app pub date -
Apr 29, 1995
filing date -
Apr 29, 1995
priority date (Note) -
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Abstract
An RF device (12), such as an amplifier, is tested by applying a digitally-modulated RF stimulus signal, having a known magnitude and phase angle, to the device to cause it to generate a response signal. The response signal of the device is down-converted and digitized prior to establishing its magnitude and phase angle. The magnitude and phase angle of the digitized, down-converted response signal are compared to the magnitude and phase angle, respectively, of the digitally-modulated stimulus signal to yield transfer functions indicative of the operation of the device.
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