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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 ...

  • The challenge of testing 5G antenna performance

    Rohde & Schwarz presents the R&S®ATS1000 antenna test system, a highly accurate solution for testing 5G antennas up to mmWave frequencies in a mobile shielded chamber.

  • Automated spectrum clearance in LTE and 5G mobile networks

    Spectrum clearance in mobile networks is becoming ever more important as operators use new bands that previously contained other services. This is particularly important for the rollout of 5G NR.

  • Wideband mm-Wave Signal Generation and Analysis

    Generation of wideband digital modulated signals in V-band and above is a challenging task and typically requires a set of multiple instruments. This application note aims at simplifying the task and looks into the analysis part as well. Latest signal and spectrum analyzers like the R&S®FSW67 are first to allow use in V-band up to 67 GHz without external frequency conversion. Up to 2 GHz of modulation bandwidth can be covered using the option R&S®FSW-B2000.Former application note 1MA217 describes V-band signal generation and analysis up to 500 MHz modulation bandwidth. This application note expands modulation bandwidth to 2 GHz but also an alternative setup is used to cover the necessary bandwidth and to obtain enhanced purity in signal generation.

  • 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/

  • dB Calculator

    30 dBm + 30 dBm = 60 dBm? It is well known that it is not as easy as that.This application note supplies a free of charge software tool that can be used to add or subtract an arbitrary number of powers. In addition, the software can be used to convert power and voltage units from the linear to the logarithmic scale (and vice versa), convert linear power and voltage ratios to decibels, and convert a VSWR to other reflection quantities.

  • 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.

  • 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/

  • 5G Signal Generation - R&S®SMW200A The best performance - hassle free - Flyer

    5G Signal Generation - R&S®SMW200A The best performance - hassle free - Flyer Brochures and Data Sheets Fact Sheets Generating 5G test signals ı Although no 5G standard has yet been defined, it is clear from the initial frequency bands under investigation (multiple different bands up to 40 GHz) and the bandwidths (up to 800 MHz) being used that 5G is going to present a significant technical

  • 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.

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