Method and apparatus for testing RF devices
US5581190A · kind A · utility
29Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1995 |
| Grant date | Dec 3, 1996 |
| Priority date | — |
| Expiry date | Apr 29, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.