System and method for noise measurement
US11815540B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2021 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Jul 1, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/19
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A receiver is for measuring the output noise of a device-under-test (DUT). The receiver includes an input port configured to connect to an output of the DUT, first and second measurement channels, and a cross-correlation circuit. The first measurement channel includes a first amplifier, a first mixer, a first local oscillator (LO), and a first analog-to-digital converter (ADC). The second measurement channel includes a second amplifier, a second mixer, a second local oscillator (LO), and a second analog-to-digital converter (ADC). A second LO frequency is different than a first LO frequency. The cross-correlation circuit is configured to cross-correlate sample values obtained from the first and second measurement channels to obtain the output noise of the DUT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.