Search Application Notes & Cards
Learn how to configure Rohde & Schwarz products to fit your application. Search our database by product, technology, or application to find relevant technical documents.
Search Application Notes & Cards
Learn how to configure Rohde & Schwarz products to fit your application. Search our database by product, technology, or application to find relevant technical documents.
40 Results
The document gives an overview and user guide about a link budget calculator for the main components of a basic OTA system. The calculator shall guide the user to plan link budgets, especially with respect to SNR requirements for the receive components and the vector signal analyzer. An Excel sheet containing the Link Budget Calculator accompanies the application note.
19-Mar-2019 | AN-No. 1EF104
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.
29-Aug-2017 | AN-No. 1GP118
The R&S®CMW500 and R&S®SMBV100B are the ideal team for motor vehicle type approval testing of your eCall and ERA-GLONASS cellular modems and their GNSS receivers in line with the EU2017/79 regulation.
02-May-2022
The verification of emissions according to EN or FCC standards is mandatory to avoid any interference with existing users. Besides the common emission tests with measurement bandwidth up to 1 MHz and mean power measurements, most regulations also require to test peak transmission power within a 50 MHz bandwidth to avoid interference with any existing wideband applications, for example radar receivers. This application note provides information how to perform spectral emission measurements on UWB signals with spectrum analyzers using wide bandwidth RBW filters, and explains the capabilities and the limiting factors of the Rohde & Schwarz FSW signal and spectrum analyzer to perform this measurement. The next sections will give further details.
28-Jun-2021 | AN-No. 1EF109
Rohde & Schwarz signal generators can generate standard-compliant WLAN IEEE 802.11ax signals for high efficiency (HE) receiver testing.This application note helps to choose the right generator test solutions and explains step-by-step how to generate 802.11ax SISO and MIMO signals. Measurements, such as EVM, are presented to illustrate the signal performance. Furthermore, this document shows how to test 802.11ax receiver specifications and the newly introduced HE trigger-based PPDU specifications according to the IEEE P802.11ax/D1.3 specification draft.
16-Aug-2017 | AN-No. 1GP115
The Internet of Things (IoT) is considered the driving force of current and future wireless communications. In release 13, 3GPP has specified Narrowband-IoT (NB-IoT) as a new physical layer. This application note gives a short introduction to NB-IoT and shows the easy measurements with Rohde & Schwarz instruments.
30-Jun-2017 | AN-No. 1MA296
An ever-increasing requirement for data on mobile networks, driven by a myriad of applications from HD video on the move to autonomous vehicles and Industrial IOT, means a part of the new 5G network is to be deployed at mmWave frequencies, with a 26 GHz pioneer band defined for the UK between 24.25 - 27.5 GHz.This near 10-fold increase in frequency over 4G networks opens several challenges, both in the design and implementation of the required sub-components, network infrastructure and end user equipment, and in parallel in the test and measurement approaches used to drive these developments.In this presentation, we will introduce some of the main challenges in test and measurement of a device at these frequencies. We will then present the testing of a 26-28GHz pioneer band dual channel amplifier evaluation module using 5G NR test waveforms.
26-Nov-2018
Blocking test, WLAN, Wi-Fi, RF device, performance limit Customize blocking tests and make sure to address parameters like frequency positions, levels or bandwidths when verifying RF device performance. Verifying RF device performance with a blocking test Blocking test, WLAN, Wi-Fi, RF device, performance limit Customize blocking tests and make sure to address parameters like frequency positions, levels
31-Oct-2019
radiated conformance testing according to TS 38.141-2, Rel. 16
3GPP defines the Radio Frequency (RF) conformance test methods and requirements for 5G NR Base Stations (BS) in the technical specifications TS 38.141. This application note describes all mandatory radiated RF transmitter tests (TS 38.141-2, chapter 6), according to Release 16.Furthermore, this document provides a brief introduction about the different R&S OTA antenna test solutions and how they are applicable for base station conformance testing. Rohde & Schwarz offers solutions for any test case that is mentioned in this application note.
20-Dec-2019 | AN-No. GFM324
This application note describes how to generate and analyze wideband digitally modulated signals in the mm-wave range.Rohde & Schwarz measuring equipment and some 3rd party off-the-shelf accessories are used for both signal generation and analysis. Measurement results are shown which demonstrate the typical performance for millimeter wave signals in terms of error vector magnitude (EVM) and adjacent channel power (ACLR).Two test setups and their measurement results on a commercial V-band transceiver module are presented.
02-Sep-2014 | AN-No. 1MA217