US 11,921,142 B2
Measurement system and method for analyzing RF signals
Thomas Ruster, Munich (DE)
Assigned to Rohde & Schwarz GmbH & Co. KG, Munich (DE)
Filed by Rohde & Schwarz GmbH & Co. KG, Munich (DE)
Filed on Sep. 21, 2022, as Appl. No. 17/949,799.
Claims priority of application No. 21209167 (EP), filed on Nov. 19, 2021.
Prior Publication US 2023/0160938 A1, May 25, 2023
Int. Cl. G01R 29/08 (2006.01)
CPC G01R 29/0885 (2013.01) 15 Claims
OG exemplary drawing
 
1. A measurement system for analyzing RF signals, comprising
an optically transparent enclosure comprising an optically pumpable medium being exposed to an electromagnetic field of the RF signal to be analyzed;
an optical pump for penetrating the medium with intensity-modulated light, the intensity defining an absorption sensitivity of the medium;
a field generator for generating an electric and/or magnetic field within the enclosure, a strength of the generated field defining an absorption frequency of the medium;
a controller for controlling the absorption sensitivity of the medium in dependence of the absorption frequency of the medium; and
a detector for detecting an optical property of the penetrating light passing through the medium.