US 11,982,697 B2
RF vector measurement system with one or more entangled quantum sensors
Julius Seeger, Prien am Chiemsee (DE)
Assigned to Rohde & Schwarz GmbH & Co. KG, Munich (DE)
Filed by Rohde & Schwarz GmbH & Co. KG, Munich (DE)
Filed on Dec. 23, 2021, as Appl. No. 17/560,888.
Prior Publication US 2023/0204645 A1, Jun. 29, 2023
Int. Cl. G01R 27/28 (2006.01); G01R 29/02 (2006.01); G06N 10/40 (2022.01); G06N 10/70 (2022.01); H04B 10/079 (2013.01); H04B 10/11 (2013.01); H04B 10/70 (2013.01)
CPC G01R 29/02 (2013.01) [G06N 10/40 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A RF vector measurement system, comprising:
a first port for generating a RF pulse,
a pulse splitter for splitting the pulse into a first pulse send to a device-under-test DUT, and a second pulse send as a reference to a quantum sensor of the system,
wherein the system is arranged to supply a third pulse, which is produced by reflecting or transmitting the first by the DUT, to said quantum sensor,
a computing unit is arranged to perform a measurement of the DUT by:
reading out the state of the population of the quantum sensor, which state is based on the relative phase and relative amplitude of the second pulse and the third pulse, and
determining the relative phase and relative amplitude of the second pulse and the third pulse as the closest match when applying a quantum sensor model designed to model the dependencies between the relative phase and amplitude and the resulting population state.