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  • Be ahead in 5G Turn visions into reality - Brochure

    Up to now, concrete and confined use cases such as mobile voice for 2G and mobile data for 4G dominated the definition of cellular technologies. The next generation of mobile networks, 5G, introduces a paradigm change ...

  • Antenna Beam Characterization of 5G Mobile Devices and Base Stations Using the R&S®NRPM Over-the-Air (OTA) Power Measurement Solution

    Radio frequencies in bands around 28 GHz are being discussed as candidates for mobile communications of the fifth generation (5G). Beam steering will be a key feature in the context of 5G. It will be a major challenge to test the beam steering capabilities of base stations and user equipment in every phase from research and development through production. Conducted measurements will be mainly replaced by over-the-air measurements of electromagnetic radiation. Rohde & Schwarz offers the R&S®NRPM Over-the-Air (OTA) Power Measurement Solution that perfectly fits such measurement needs.Part of this solution are the R&S®NRPM-A66 antenna modules. They have integrated diode detectors. Thus, there are no cables between the antenna and the detector as in traditional setups. This avoids high and potentially unknown RF losses. The R&S®NRPM-A66 antenna modules with their integrated diode detectors are factory calibrated, which means that the user does not have to calibrate them to achieve highly accurate measurement results.This application note contains theoretical background on OTA power and pattern measurements. It gives step-by-step instructions for the verification of the power level and the radiation pattern of a device under test (DUT) in comparison to a golden device, and it presents an approach for verifying the accuracy of beam steering.

  • ATS1000: Passive Antenna Measurement and Nearfield - Farfield Transformation

    This application note describes how to measure the antenna pattern of a mm-Wave device in the R&S®ATS1000 shielded chamber. This includes the required calibration of the measurement setup and a possible near field to far field transformation when measuring larger devices.

  • Flexible Signal Generation and Analysis for 5G

    Flexible Signal Generation and Analysis for 5GMicrowave Product Digest (MPD) - Technical Feature

    This download is available in the following languages:

  • Generating Multiple Phase Coherent Signals – Aligned in Phase and Time

    Rohde & Schwarz signal generators present a compact easy-to-use solution for generating phase coherent signals. Different generator models can be coupled to optimally fit user requirements in terms of number of phase coherent channels and RF frequency range.This application note explains how to generate phase coherent signals, details what to consider and how to best calibrate the relative phases and timing between the individual channels. This document also presents various measurements of the phase stability over time for different RF frequencies.

  • High-Speed Remote Control of R&S SGMA RF Sources

    This application note describes how to remotely control the R&S SGMA RF sources SGT100A and SGS100A with a special focus on their high-speed remote control capabilities via LAN based FAST Socket or FAST PCI Express (PCIe) connections which allow round trip setting times of only 100μs.It therefore provides a brief introduction into the general remote control capabilities, explains the interaction of the different SW protocol layers and drivers, and in detail describes how to establish a high-speed remote control connection. Finally, a comparison of the measured setting time performance of the different remote control approaches is provided.

  • 5G Waveform Candidates

    Enhanced Mobile Broadband, Massive Machine Type Communication, Ultra-reliable and low latency communication have been identified as the requirements to be supported by the 5thGeneration of Mobile Communication, short 5G. 5G is extensively discussed in the wireless industry. A lot of research and pre-development is being conducted worldwide, including an analysis of the waveforms and access principles that are the basis for current LTE and LTE-Advanced networks.In this application note we discuss potential 5G waveform candidates, list their advantages and disadvantages and compare them to Orthogonal Frequency Division Multiplexing (OFDM), which is used in LTE/LTE-Advanced.

  • Doherty, Balanced, Push-Pull & Spatial Amplifier Performance Enhancement

    The Doherty Amplifier continues to be rolled out in an increasing number of TxFE (Transmit Frontend) applications, as the quasi-linear amplifier architecture of choice.The advent of 5G, with its inevitable microwave or millimeter wave air interface, increase the design challenges associated with its construction; not least of all because of the potential for increased dispersion in the constituent amplifiers and combiners.This application note describes a measurement-based development methodology by which the Doherty Amplifier may be enhanced, increasing performance and/or performance bandwidth. This methodology is supported with a working example.The methodology may also be extended to balanced, spatially combined and anti-phase (so called "pushpull" or "differential") amplifiers, the latter often itself nested in Doherty configurations.The R&S®Quickstep sequencing software may be downloaded from:https://www.rohde-schwarz.com/software/quickstep/

  • Measurement of Beamforming Antenna in Transmit Mode

    Rapid and accurate verification of beamforming weights is required for example, for codebook generation or beamforming algorithm development or verification. This document describes the unique application of Rohde & Schwarz VNA (Vector Network Analyzers) to fully characterize the passive part of multi-element antennas intended for beamforming.A range of R&S VNA models are optionally equipped with multiple independent sources, whose relative amplitude and phase may be arbitrarily controlled ("defined coherence mode"), in addition to frequency and true time delay. These sources may be connected to individual elements of a multi-element antenna to derive and verify transmit (Tx) mode beamsteering and beamforming operation.The R&S®ZVA in "Defined Coherence Mode" can electronically be switched to / from the conventional S-parameter mode. Therefore, Sparameter and beamforming measurements may be performed efficiently within a single connection cycle of the antenna.Multiple VNA may be daisy-chained, to extend the concept shown to support an arbitrary number of ports.The R&S®Quickstep sequencing software may be downloaded from:https://www.rohde-schwarz.com/software/quickstep/

  • Signal generator, signal and spectrum analyzer and power sensor solutions for 5G - Application Brochure

    When it comes to wideband signal generation and analysis, Rohde & Schwarz provides solutions that go all the way to millimeterwave frequencies and even beyond. Our signal generation and analysis solution portfolio covers the bandwidth and frequency requirements for 5G and offers a wide range of features and application software to address 5G testing challenges.

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