Rohde & Schwarz has patented a measurement system for analyzing RF signals using an optically transparent enclosure with an optically pumpable medium. The system allows fine-tunable and frequency-dependent control of sensitivity and dynamic range for spectral analysis of RF signals. GlobalData’s report on Rohde & Schwarz gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Rohde & Schwarz, Wireless network optimization was a key innovation area identified from patents. Rohde & Schwarz's grant share as of February 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.

Fine-tunable measurement system for analyzing rf signals

Source: United States Patent and Trademark Office (USPTO). Credit: Rohde & Schwarz GmbH & Co KG

A recently granted patent (Publication Number: US11921142B2) discloses a measurement system designed for analyzing RF signals. The system includes an optically transparent enclosure with an optically pumpable medium exposed to the electromagnetic field of the RF signal. It features an optical pump that penetrates the medium with intensity-modulated light, a field generator for creating an electric and/or magnetic field within the enclosure, a controller to adjust the absorption sensitivity of the medium based on the absorption frequency, and a detector to analyze the optical properties of the light passing through the medium.

Furthermore, the patent details the components and configurations of the measurement system, such as the use of a modulated laser for the optical pump, a homogeneous field generator, and a photodiode detector. It also describes variations in the system, including the use of a spatially resolving light modulator, a camera detector, and different types of mediums like gases (e.g., alkali metals like Rubidium) or solids (e.g., diamond). Additionally, the method outlined in the patent involves generating a field in the enclosure, penetrating the medium with modulated light, adjusting absorption sensitivity, and detecting optical properties to analyze RF signals effectively.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.