Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – With auxiliary means to condition stimulus/response signals
Patent
1995-04-29
1996-12-03
Tokar, Michael
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
With auxiliary means to condition stimulus/response signals
324613, G01R 2700
Patent
active
055811906
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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Hewlett-Packard 1995 Wireless Communications Design Seminar, 94 pages.
Herring Chauncey
Heutmaker Michael S.
Wu Eleanor
Levy Robert B.
Lucent Technologies - Inc.
Tokar Michael
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