Articles by Rohde & Schwarz

In the radio-frequency world, the term "direction finding" (DF) refers to the use of specialized instruments, antennas, and methodologies to determine the physical or geographical location of an emitter; that is, a source of radio-frequency energy.

This white paper provides an overview of test solutions addressing current and future requirements for antenna verification including both conducted and over-the-air test methods, which result from applying Massive MIMO antenna technology.

Learn about the basics of OTA Testing including near-field and far-field definitions/equations, typical parameters to measure for device characterization, various methods to transform near-field to far-field for measurements, and how to perform far-field measurements at near-field distances. Download this informational poster now.

Rohde & Schwarz and Decawave demonstrate test functions for the new generation of Decawave UWB devices with the new generation of Rohde & Schwarz radio communication tester, the R&S CMP200. With this solution, both companies address manufacturers planning wireless devices using Ultra Wideband (UWB) technology to provide secure location-based services.

The R&S CMW platform of Bluetooth® testers already support the new Bluetooth® Low Energy (LE) version  5.2 power control test routines. These are the only T&M instruments that measure all specified RF tests up to Bluetooth LE 5.0 via the air interface. This unique solution has already been submitted to the Bluetooth® SIG for the specification of a new Bluetooth LE test mode.

NewSpace Terminal Testing Challenges and ConsiderationsToday’s satellite communication systems combine features from legacy cellular networks and emerging wireless technologies. New constellations are under development that attempt to provide ubiquitous mobility and internet networks via satellites, ground stations and user terminals.

Pulse width modulation (PWM) is a commonplace technique for efficiently driving switched mode supplies at a fixed frequency. This applies to many types of power supplies in industrial control systems, power electronics and digital communications.

With commercial 5G deployments gathering pace globally, field service teams are facing the challenge of successfully deploying and operating new network infrastructure that has a radically different architecture from previous cellular generations. Rohde & Schwarz has introduced the 5G Site Testing Solution (5G STS) that provides the industry with an integrated package of proven test equipment that combines all the necessary functional, RF and signaling tests for 5G installation and troubleshooting.

Rohde & Schwarz offers a broad range of WLAN signaling test solutions in line with IEEE 802.11ax. Access points and WLAN stations can now be tested in single input single output (SISO) and multiple input multiple output (MIMO) mode as well as in single-user or multi-user (OFDMA) operation, even under fading conditions and during IP data application.