Synchronous Node B Testing with R&S CMU300

10-Nov-2005 | AN-No. 1CM58

This application note aims to explain test procedures and characterization of the relevant parameters for active phased array antennas.

04-Jul-2016 | AN-No. 1MA248

An offline AC/DC switching converter has no separate bias power supply that provides power to the control integrated circuit itself. Here, an auxiliary primary winding and discrete components are added to supply power to the control circuit. Verifying this circuitry is essential and requires accurate and detailed signal level and timing measurements. The startup sequence takes a long time, which needs to be taken into consideration in the measurement and requires an instrument with sufficient memory.

23-Nov-2022

Common mode distortion of wide-bandgap power electronics probing

25-Nov-2024

Remote Emulation with the R&S SMBV100B Signal Generator

30-Sep-2019 | AN-No. 1GP121

Security through technology - the R&S®QPS quick personnel security scanners are specifically designed to make people screening at security checkpoints faster, more effective and comfortable.

23-Jan-2019

RF system noise contributions define receiver capabilities and sensitivity. The noise figure measures how the critical components affect the signal.

28-Jan-2022

The topic of this application note is mobile phone measurements – in theory and in practice. It discusses measurements according to the most common standard in use today, GSM.

22-Aug-2014 | AN-No. 1MA231

Hints for Fast and Accurate Testing of GSM/EDGE Mobile Phone Power Amplifiers

29-Apr-2004 | AN-No. 1MA66

Integrated sensing and communication (ISAC) brings the future to life in 6G

11-Mar-2024

Multichannel signal reception in parallel using digital downconverters in a monitoring receiver.

14-May-2014

Operating Guide for WCDMA Test Setup according to 3GPP TS34.121

15-Apr-2009 | AN-No. 1CM71

In this paper, we present the performance and the basic control of a MNA used for automatic spectrum clearance in LTE and 5G systems.Automatic spectrum clearance is a method to mitigate spectrum interference by the use of a mobile network analyzer (MNA).

02-Oct-2017 | AN-No. 1MA293

This paper describes the characterization of aluminum electrolytic capacitors specifically used in AC-DC power converter applications. It will be discussed why this capacitor technology is critical regarding lifetime and why it cannot be substituted simply by any another capacitor technology. Different aging effects of the capacitor will be discussed. Usage of the capacitor in different AC-DC converter topologies will be presented. Simulation circuits will be used to analyze the capacitor in more detail before suitable measurements will be performed to demonstrate a real example of a switching-mode power supply (SMPS).After the introduction into the aluminum electrolytic capacitor basics and theory, this paper will also present all important and possible measurements of capacitor parameters, like capacitance, equivalent series resistance (ESR) and ripple current. This includes in-circuit measurement which can be performed with an oscilloscope. An LCR-bridge is used to obtain high accuracy measurements in addition. A comparison between the two measurement methods will be presented. Furthermore, the required measurement hardware for the in-circuit measurements and the bridge measurement will be discussed and presented.Lastly, two different lifetime calculation methods are presented and a real example is used to compare the advantages and disadvantages of the different methods.Thanks to Mr. Frank Puhane from Würth eiSos GmbH & Co. KG who provided me with all aluminum electrolytic capacitor samples including the prepared capacitor with build-in temperature sensors to perform all measurements. Furthermore, his great expertise was very beneficial and helpful to create this premium application note.

07-Feb-2023 | AN-No. 1SL388

RF Level Measurement Uncertainties with the Measuring Receiver R&S FSMR

28-Mar-2006 | AN-No. 1MA92

CMW Support of WLAN 802.11ac

21-Oct-2013 | AN-No. 1CM101

For measurement settings below 10 mV/div, oscilloscopes typically reduce the measurement bandwidth in order to keep the trace noise as low as possible. The R&S®RTO is different: It offers the full bandwidth even for the most sensitive settings, and an A/D converter with more than 7 effective bits (ENOB) digitizes the signal.

13-Jul-2012

Solutions and Tipps for NR FR1 in TDD Downlink Mode

5G New Radio (NR) is a radio technology specified by 3GPP and was first released in 3GPP release 15. It is designed to target three use cases, i.e. enhanced mobile broadband (eMBB), massive machine type communication (mMTC) and ultra-reliable low latency communication (URLLC). Among these three use cases, eMBB represents actually a further evolution of mobile broadband communication from LTE standard. According to the technical performance requirement defined by IMT-2020, by deploying 5G technology, peak data rates of eMBB application are expected to reach 20 Gbps in downlink (DL) and 10 Gbps in uplink (UL) direction, respectively. Typical use cases of eMBB are data hungry applications, such as high resolution 8K video streaming, virtual reality (VR), augmented reality (AR) etc.Verification of a 5G capable user equipment (UE) with respect to its achievable maximum data throughput under controllable and deterministic test conditions is an essential process during the design phase of the product. Performance centric verification through identification of the data throughput bottleneck, product benchmarking against a golden device enhances tremendously the user experience in the end.This document focuses on 5G NR frequency range 1 (FR1) with TDD duplex mode in E-UTRAN New-radio Dual Connectivity (ENDC) operating mode. As 5G NR physical layer offers a plethora of flexibility, the motivation here is to provide a kind of guideline of relevant parameter settings to stimulate device under test (DUT)'s max throughput capacity. The status quo of the R&S solutions at the time when the application note is created are described. Shown feature sets are constantly evolving, so the screenshots used and the parameters shown may change.

07-Jul-2022 | AN-No. 1SL379

Measurements on PCS1900 Mobile Stations According to J-STD-007

01-Nov-1996 | AN-No. 1EF22

Remote Emulation with the R&S^®SMA100A Signal Generator

17-Aug-2015 | AN-No. 1GP93

In this application note the fundamental working principles of active antennas and the differences compared to passive antennas are asserted.

03-Feb-2016 | AN-No. 8GE02

Crime scene investigation with cellular network analysis

14-Mar-2024

The R&S®RTx-K50 option expands the addressable range of interface standards by adding decoding capability for standardized and proprietary Manchester or NRZ coded buses.

19-Oct-2020

This application note describes how all required performance tests can be performed quickly and easily by using vector signal generators.

11-May-2016 | AN-No. 1MA162

Trace minimum hold function and utilize better visualization of persistent interferers with the R&S®MNT100, R&S®PR200, R&S®PR100 and R&S®DDF007.

15-Jul-2019

In this App card you will learn more about Interference hunting in TDD networks with the polychrome display method and solutions from Rohde & Schwarz.

09-Sep-2020

Current radar development is focusing on the area of signal processing. This is taken into account by this educational note, where the R&S®SMW / SMBV instruments on the transmitter side and R&S®FSW / FSV instruments on the receiver side are combined to a closed loop Radar system.

20-Nov-2014 | AN-No. 1MA234

The Yamaha® MP Series combined with the R&S®ZNBT vector network analyzer measure the high frequency characteristics of a production lot at high speed and high accuracy.

27-Jan-2020

Power Measurements on WLAN Modules with the R&S CMU 200 and with CMUgo

18-Oct-2005 | AN-No. 1CM55

Application Note Peak and Mean Power measurements on wideband FMCW radar signals

28-Jun-2019 | AN-No. 1EF107