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  • Multi-Channel Signal Generation Applications with R&S®SMW200A – Overview

    The R&S®SMW200A vector signal generator has the outstanding ability to simultaneously generate up to eight independent signals from a single instrument. The advanced multi-channel architecture allows realizing even complex applications like MSR, carrier aggregation, MIMO or enhanced interference scenarios with a minimum of effort.This application note gives an overview of common multi-channel application examples and how to equip the Rohde & Schwarz signal generator R&S®SMW200A appropriately.

  • In-Device Coexistence Interference

    In-Device Coexistence InterferenceMicrowave Journal - Wireless Communications Rohde & Schwarz in the Press In-Device Coexistence Interference Abinash Sinha, Reiner Stuhlfauth and Fernando Schmitt Rohde & Schwarz, Munich, Germany An emerging trend in mobile communications is the parallel usage of multiple radio technologies in mobile devices, tablets and other communications modules. In order to

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  • LTE - Technology Overview - Poster

    English (PD 5213.9986.82)

    This download is available in the following languages:

  • Carrier aggregation — (one) key enabler for LTE-Advanced - Brochure

    English (PD 3606.7630.62)

  • 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.

  • LTE Downlink MIMO Verification with R&S®SMW200A and R&S®FSW

    Multiple Input Multiple Output (MIMO) is an integral part of LTE. Vector signal generators and signal & spectrum analyzers from Rohde & Schwarz support LTE measurements with up to 4 antennas. This Application Note covers 2x2 MIMO in the LTE downlink. Remote control programming is demonstrated by examples for a free-of-charge program. Forum Link

  • 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.

  • Higher Order MIMO Testing with the R&S®SMW200A Vector Signal Generator

    Due to its outstanding performance the R&S®SMW200A vector signal generator is ideal for testing MIMO receivers in a vast variety of applications offering maximum usability at minimum form factor. It can generate up to eight antenna signals simultaneously in its digital baseband – all standard-compliant and with antenna-specific coding. In addition, it can simulate the complete MIMO transmission channel with up to 32 fading channels, sufficient to emulate higher-order MIMO configurations such as 3x3, 4x4, and 8x4.This application note explains how to use the SMW for testing higher order MIMO systems by presenting different key applications.

  • 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/

  • Acoustic Test Software for Mobile Phones in Service and Repair

    This application note provides software and instructions for a simple check of the acoustic performance of mobile phones. It targets mainly service centers and repair workshops which have to perform incoming tests of defective mobile phones and final tests of repaired mobiles. A focus is set on short test times and ease of use, without compromising accuracy and repeatability of results.

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