Verfahren und Messsystem zur Bestimmung der Rauschzahl einer zu Prüfenden Vorrichtung

Details

Veröffentlichungs-Nr.

EP3644073

Aktenzeichen

EP19185964

Anmeldetag

12. Juli 2019

Veröffentlichung

24. November 2021

Erteilung

24. November 2021

Rechtsraum

EP

IPC

G01R29/26

Abstract

A method for identifying the noise figure of a device under test (12) is described. A signal generator (14) that outputs the modulated signal, a device under test (12) and an analyzer (16) are provided. The signal generator (14) is connected with the analyzer (16) directly wherein at least two error vector magnitude measurements are performed. The signal generator (14) is connected with the device under test (12) and the device under test (12) is connected with the analyzer (16) wherein at least two error vector magnitude measurements are performed. The noise contribution of the device under test (12) is determined from the error vector magnitude measurements performed. A gain measurement is performed on the device under test (12). The noise figure of the device under test is calculated based on the noise contribution of the device under test (12) obtained and the gain of the device under test (12) obtained. Further, a measurement system (10) is described.

Anmelder

Firma

Rohde & Schwarz GmbH & Co. KG

Land

🇩🇪 Deutschland

Fachgebiete