8391 Results
Radar technology is essential for state-of-the art and future vehicles on the path to full autonomous driving. Radar sensors deliver critical information about the surrounding traffic environment or monitor the interior of the vehicle. As safety-relevant parts, radar sensors must adhere to specifications and regulations.
12-Dec-2022
This application note expands modulation bandwidth up to 2 GHz and covers both V- and E-band examples.
18-Jun-2015 | AN-No. 1MA257
The R&S®SMBV100B delivers precise synchronization information for communications in C-V2X mode and very accurate position information to the device under test.
18-Nov-2019
The document focusses on devices for the 3.5 GHz NR (5G New Radio) candidate band, but its findings are equally applicable to developments and measurements for K-band satellite applications or mmW NR candidate bands,
01-Aug-2017 | AN-No. 1MA289
Converting Existing Waveform Files from R&S AMIQ or Binary into R&S SMU200A or R&S AFQ100A Format
18-Jun-2009 | AN-No. 1GP64
1MA210 - Testing LTE Release 9 Features. This Application Note describes the T&M methods for LTE Release 9 features using Rohde & Schwarz instruments.
26-Apr-2013 | AN-No. 1MA210
The R&S®ZNA vector network analyzer with integrated LO output and direct IF input options is a simple, cost-effective solution for 2-port and 4-port measurements using Rohde & Schwarz mmWave converters.
27-Apr-2023
Guidelines for MIMO Test Setups – Part 1
10-Mar-2010 | AN-No. 1GP50
With its small footprint, the R&S®ATS1000 antenna test system is the ideal direct far-field OTA system to test phased array antennas.
12-Mar-2020
A versatile RF Fading Simulator can easily be built using an R&S®FSW, R&S®FSQ, R&S®FSG, R&S®FSV signal analyzer.
27-Feb-2015 | AN-No. 1MA145
LTE is under continuous development. Release 10 (LTE-Advanced) introduced carrier aggregation (CA) as the primary enhancement. Releases 11 and 12 add several new components to LTE. Some are enhancements to existing features (such as improvements to CA), while others are completely new concepts, such as coordinated multipoint (CoMP).This application note summarizes the Rohde & Schwarz test solutions for LTE-Advanced according to Releases 11 and 12 using vector signal generators, signal and spectrum analyzers and the wideband radio communication tester.
14-Jul-2016 | AN-No. 1MA272
This white paper provides an overview of test solutions addressing current and future requirements for antenna verification.
11-Nov-2016 | AN-No. 1MA286
Signal Generation and Analysis
This Application Note supplements the video series, describing signal generation and signal analysis for Dynamic Spectrum Sharing (DSS) for LTE and 5G NR.
30-Mar-2020 | AN-No. GFM337
R&S®CMWcards is an intuitive and user-friendly software application that makes NB-IoT OTDOA positioning design verification easier than ever.
26-Nov-2018
RF chipset verification for UMTS LTE (FDD) with R&S<sup>®</sup>SMU200A and R&S<sup>®</sup>FSQ
19-Dec-2008 | AN-No. 1MA138
This application note explains how to use the SMW for testing higher order MIMO systems by presenting different key applications.
24-Feb-2016 | AN-No. 1GP97
This Application Note covers 2x2 MIMO in the LTE downlink. Remote control programming is demonstrated by examples for a free-of-charge program.
09-Oct-2014 | AN-No. 1MA143
A step by step HOW TO guide to perform manual and automated wireless coexistence testing
At the end of the year 2020, there were over 20 Billion internet of things (IoT) products in the world operating using the licensed and unlicensed frequency bands. This growth trend is projected to keep steady over the coming years as more and more people adopt to a smarter and more connected lifestyle. This will result in a much busier and challenging RF environment than the one we have today. In order to understand the complexity of the RF spectrum, a white paper was published in 2021 from Rohde & Schwarz, which featured RF spectrum activity at multiple locations observed at different times of the day. The locations were selected based on population densities and the amount of known RF transmitters & their frequencies at those locations. It was also concluded that the ISM bands on average have higher channel utilization since most IoT devices take advantage of the unlicensed spectrum. The paper recommended, that while performing wireless coexistence testing, the test conditions should reflect the operational RF environment that the device is intended to operate in. Otherwise, the characterization of RF performance would only reflect ideal case which doesn’t exist in real world operation. Since it is not always possible to test all devices in the real world, relevant test methodologies need to be setup to replicate the real world as much as possible.This will help us get a better understanding of how the receiver of the RF device will behave under different RF conditions. It is also recommended to perform measurements in order to understand the behavior of the device in the future when the spectrum will get even more challenging. Therefore, a through characterization of the capability of the RF receiver to handle in-band and out-of-band interference signals in also of interest.In terms of regulatory compliance requirements for ensuring wireless coexistence performance, the ANSI C63.27 is currently the only published test standard that provides guidance on how to perform coexistence testing on devices. The test complexity is based up on risk imposed on the user’s health in the event of a failure caused by an or a plurality of interference signal. The standard also gives device manufacturers guidance regarding test setups, measurement environments, interference signal types and strategy, performance quality measurement parameters for physical layer using key performance indicator (KPI) and application layer parameters for end-to-end functional wireless performance (FWP).In this application note, the guidance provided by the ANSI C63.27-2021 version regarding test setup, measurement parameter and interference signal have been followed. It will give the reader a clear idea on how to configure standardized test instruments from R&S in order to generate the wanted signal as well as unintended interference signals and conduct measurement to monitor device performance in terms of PER, ping latency and data throughput.This application note provides step-by-step instruction on how to perform measurements using conducted and radiated methodology. Both manual and automated instrument configuration approach is explained in this document.The automation scripts are written using python scripting language and are available for download with this application note, free of charge. Official required to run the scripts are available on the PYPI database.
10-Nov-2022 | AN-No. 1SL392
The arbitrary waveform feature o Rohde & Schwarz solutions allow you to simulate device behaviors and replaces basic standalone arbitrary waveform generators.
04-Nov-2019
Software tool for fast and repeatable optimization of signal analyzer RF front-end settings
The signal conditioning in the RF front-end of signal analyzers is crucial to achieve the best performance with respect to image-suppression, noise-floor, dynamic range and other RF-key parameters.Precise signal levelling is especially important for complex measurements like Error-Vector-Magnitude (EVM). To minimize the measurement uncertainty from test system contributions over a wide range of different levels, the RF front-end needs to be adapted continuously according to the signal characteristics, signal power and frequency - ideally using an automatic levelling algorithm.This document describes the approach of a waveform specific, on-site characterization of the signal analyzer: For each waveform and frequency of interest, the instrument is evaluated in a first step. With this additional data, a fast and repeatable auto-levelling can be performed during the actual measurement.
24-Jan-2022 | AN-No. 1EF111
The R&S®FSW signal and spectrum analyzer facilitates swept spectrum analysis of next generation SARs with true preselection, finer range resolution and image rejection.
16-Apr-2021
This application note describes two test solutions from R&S® to cope with the 5G FR1 downlink MIMO signal analysis challenges either using R&S®RTP/RTO oscilloscope or R&S®NRQ6 frequency selective power sensor.
26-Jun-2020 | AN-No. GFM343
In order to make it easier to monitor the use and status of instruments, some devices offer the software option Health and Utilization Monitoring Service (HUMS). HUMS provides all necessary information about the health status and utilization over time in many details.
11-Jan-2021 | AN-No. GFM336
Fault identification in single elements of antenna arrays is possible by scanning in near-field range and applying the near-field to far-field transformation method.
24-Mar-2020
This application note presents generator test solutions for WLAN IEEE 802.11ax high efficiency (HE) receiver testing. This document shows how to test 802.11ax receiver specifications and the HE trigger-based PPDU specifications according to the IEEE P802.11ax/D1.3 specification draft.
16-Aug-2017 | AN-No. 1GP115
This application note describes a method using the R&S®ZNA analyzer family to measure group delay of mixers and frequency converters with an embedded local oscillator very accurately.
11-Jul-2019 | AN-No. 1EZ81
The R&S®ZNB measures the signal integrity on the PCB, taking the needed test fixtures and probes into consideration – a complete solution in a compact format.
25-Mar-2020
R&S®Server-Based Testing helps reduce test times for 5G New Radio multicarrier signals - each component carrier can be analyzed independently and in parallel.
13-Sep-2021
This application note shows how to measure the phase accurately between several signals using vector network analyzers of the R&S®ZNA, R&S®ZNB and R&S®ZNBT families.
11-Jul-2019 | AN-No. 1EZ82
Bluetooth® Low Energy channel sounding validation
06-Sep-2023