应用搜索
罗德与施瓦茨已制定一系列的应用指南、应用说明以及应用视频,旨在分享我们在测试与测量仪器方面的知识、原理及方法,并帮助您充分发挥罗德与施瓦茨公司测试与测量仪器的效能。
应用搜索
罗德与施瓦茨已制定一系列的应用指南、应用说明以及应用视频,旨在分享我们在测试与测量仪器方面的知识、原理及方法,并帮助您充分发挥罗德与施瓦茨公司测试与测量仪器的效能。
1098 结果
Today’s complex circuits must integrate several components that feed on different power levels. A robust circuit that ensures interoperability of these components needs carefully designed, clean and stable power distribution networks for power timing. At lower voltage levels, tolerance is defined in percentages and can make precise measurements challenging.
Apr 22, 2024
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 5G NR rollout. 5G NR has already initiated a worldwide deployment of TDD networks in an unknown radio environment where unwanted transmitters can create uplink interference masked by downlink signals, making interference hunting particularly demanding. Automated detection of interference signals before a network switches on can be a big help in addition to traditional manual techniques.
Apr 19, 2024
This application card examines the best practices for testing video service quality over mobile networks and discusses the different types of video services and recent changes in video streaming.
Apr 18, 2024
Best practices for national regulatory authorities
Key points:Importance of field measurements: Traditional network planning tools and models only offer an estimated view of mobile coverage. Field measurements are conducted under real geographical and load conditions, and therefore provide a more accurate picture and can discover interferences more effectively. Coverage investigations: When deploying a mobile network, operators must adhere to regulatory standards and licensing conditions. As a result, regulatory authorities carry out field measurements on a regular or ad hoc basis to validate compliance or investigate customer complaints. This process identifies coverage gaps and areas of poor network quality, enabling regulatory authorities to take actions to enhance service quality for consumers and guide network expansion.Foster competition: If the field measurements of the coverage and performance are performed on a scale representative of a given country, the transparency of these results can promote healthy competition between operators and better service for consumers, which is essential for economic growth and social development.Measurement Techniques: The harmonized methodology for measuring and evaluating data throughput and QoE based on popular services is described in ETSI TR 103 559.
Apr 15, 2024 | AN-No. 8NT14
Gated mode measurements in private 5G networks
Apr 11, 2024
R&S®NESTOR cellular network analysis software supports law enforcement agencies in alibi verification by analyzing mobile network traces. R&S®NESTOR gives users reliable confirmation of whether an individual’s mobile phone was at a specific location at the time of a crime.
Apr 10, 2024
All electronic devices have capacitive or inductive parts that that generate inrush current when switched on. This is more than just a part of operations – it is a vital aspect and demands keen oversight. The R&S®NPA power analyzers are the right instrument for the job.
Mar 28, 2024
Today’s electronic devices often draw non-sinusoidal, irregular current where harmonic current is fed back into the universal supply system. Monitoring this current is both crucial and mandatory for CE compliant devices. The R&S®NPA701 compliance tester seamlessly and efficiently monitors this current.
Mar 28, 2024
Today’s electronic devices often draw non-sinusoidal, irregular current where harmonic current is fed back into the universal supply system. Monitoring this current is both crucial and mandatory for CE compliant devices. The R&S®NPA701 compliance tester seamlessly and efficiently monitors this current.
Mar 27, 2024
O-RAN 无线电单元 (O-RU) 是 5G 网络功耗高的重要原因。提高 O-RU 的能源效率,同时不影响 O-RAN 的创新性能,是一项重中之重的要求。
3月 19, 2024
R&S®NESTOR cellular network analysis software supports law enforcement agencies (LEA) in forensics activities and crime scene investigations (CSI) by gathering information through analysis of surrounding mobile networks. R&S®NESTOR increases public safety by reducing crime scene investigation time by up to 50 %.
Mar 14, 2024
汽车电子行业正在转向电气化发展。为了增强性能、效率和可靠性,需要准确测量和分析电动传动系统。MXO 示波器是执行这些测量任务的重要测试工具,能够为工程师和技术人员实时提供电压和电流波形,有助于了解复杂的传动系统机制,从而增强性能和效率。
3月 12, 2024
P25 and FRMCS scanning
Key points: Critical Infrastructure: Learn about mission-critical communication for various agencies who deal with Public Safety such as first responders, police, firefighters, medics and its crucial role in ensuring safety of society.Reliability of Communication: Understand the challenges posed by mission-critical communication, highlighting performance and reliability needs and special requirements such as safe group communications.Technology Migration: Delve into the migration of mission-critical communication from long-standing narrow-band technologies to broadband use cases considering migration timelines.Measurement Techniques: Explore network measurement methods for passive testing of legacy MCX technologies planned to be used in the networks for quite some time (a later release of the document will focus on the broadband successors)
Mar 12, 2024 | AN-No. 8NT12
Integrated sensing and communication (ISAC) is a pillar of 6G. Combining two different yet similar worlds – communications and environmental sensing – brings the future to life in the 6G era. The key ISAC drivers are beamforming with MIMO arrays, artificial intelligence (AI), modern modulation schemes and dense network infrastructure. The R&S®AREG800A automotive radar echo generator is a core element of a versatile research and development test solution in the ISAC community.
Mar 11, 2024
Transformers are passive devices that are primarily used to convert or "transform" alternating current (AC) from one voltage level to another. One very common application of transformers is in AC to DC power supplies, in which mains voltage is stepped down before being rectified and filtered to produce DC. There are numerous other applications for transformers, such as providing electrical isolation or for impedance matching.This educational note provides a brief technical introduction to measurements made on the types of transformers used in electronics. These transformers are typically physically small, work on relatively low voltages or powers, and are used for “indoor” applications. Although many of the testing concepts described below also apply to the larger, higher-power "outdoor" transformers used for electrical power distribution, the specific tests and test procedures for these types of transformers are often specified by standards bodies such as the IEEE and may differ substantially from the types of measurements described here.Read this educational note and dive into the discussion about the six most important transformer measurements: turns ratio, mutual inductance, phase angle, primary and secondary inductance, leakage inductance, and interwinding capacitance.
Feb 28, 2024
Mobile network operators worldwide face cost pressures and escalating network complexity. The advent of 5G-NR has ushered in new use cases and flexibility, but it also comes with more stringent performance and availability requirements.Machine Learning can serve as a catalyst for the market to unearth deep insights that would otherwise remain concealed. It can also significantly streamline everyday tasks by fostering a smarter system that guides users through their routine work processes, rather than obliging them to repeat each (manual) step. Rohde & Schwarz Mobile Network Testing has focused its efforts on delivering Machine Learning use cases that distill relevant insights from drive testing data, thereby offering substantial benefits to users.This educational note explains the motivation and reasoning why this kind of approach is needed, what are the benefits of the machine learning offering and it takes a deeper look into how it can be used in various levels of statistical and technical analysis. Finally, this document provides real measurement results and analysis findings based on the Rohde & Schwarz post processing SW suite SmartAnalytics and its machine learning based features Call Stability Score and Network Utilization Rating.
Feb 28, 2024 | AN-No. 8NT10
Part 1 of the Cable and Antenna verification series – essential for Mobile Networks
Key points: Critical Infrastructure: Learn why the antenna system, as part of mobile base stations, is irreplaceable and demands meticulous attention due to its impact on network quality and availability.Vulnerability to Environmental Factors: Understand the challenges posed by weather conditions and environmental stresses on antenna systems, highlighting the importance of robust design and maintenance.Fundamental Properties: Delve into the core concepts of antenna systems, gaining insights into their transmit and receive characteristics, which serve as the foundation for effective measurement and verification.Measurement Techniques: Explore various measurement methods for antenna systems, focusing on return loss and decoupling, and their significance in assessing system performance and integrity.
Feb 23, 2024 | AN-No. 8NT11
为首次进行测量的用户提供有用建议和技巧
电阻器、电容器和电感器是电路的基本元件。这些元件必须确保正常、准确地运作。因此,需要在电路设计期间充分测试这些元件。测试通常使用实验室和生产中必不可少的 LCR 表来进行。本应用指南探讨了如何准确可靠地执行电容器和电感器基础测量。
2月 22, 2024 | AN-No. 1GP142
MXO 示波器具有先进的 FFT 功能、优越的灵敏度和高动态范围,非常适合电磁干扰 (EMI) 调试。利用时间相关的射频分析,可以快速准确地检测并分析电子电路和电路板产生的 EMI。使用操作快捷的高性能 MXO 示波器改进调试。
2月 07, 2024
MIPI D-PHY is a low-power, cost-effective physical layer interface, essential in mobile devices and advanced technology systems. It's a high-speed, source-synchronous interface used in smartphone cameras, smartwatch displays, drones, in-car entertainment, automobile cameras, and radar sensors. This application note explores MIPI D-PHY's features, functionality, and testing practices for device compliance, addressing common issues. It highlights Rohde & Schwarz's equipment for ensuring compatibility and solving issues with MIPI D-PHY, aligned with MIPI D-PHY specification version 2.5.Developed by the MIPI Alliance, D-PHY connects cameras and displays to a host processor via CSI-2 or DSI protocols. It features a master-slave, asymmetrical design for reduced link complexity. Key aspects include a unidirectional clock, optional data signal directions, different data rates for half-duplex operation, point-to-point communication, and high-speed (HS) and low-power (LP) modes for data transfer and battery preservation. In HS mode, D-PHY uses differential signaling with specific impedance, while in LP mode, it operates in a single-ended manner with high impedance termination.The application note from Rohde & Schwarz provides insights into characterizing and debugging MIPI D-PHY, offering conformance verification with MIPI Alliance standards and protocol decoding options.
Jan 31, 2024 | AN-No. 1SL410
This application note describes Methods of Implementation (MOI) for precise, fast, and error-free compliance testing of USB Type-C to legacy adapter assemblies supporting USB3.1 Gen1, and USB2.0. Based on 5 Gbps signaling per lane with vector network analyzers from Rohde & Schwarz.
Jan 18, 2024 | AN-No. 1SL407
This application note describes Methods of Implementation (MOI) for precise, fast, and error-free compliance testing of USB Type-C to legacy cable assemblies supporting USB3.1 Gen2, USB3.1 Gen1, and USB2.0. Based on 5 Gbps signaling per lane with vector network analyzers from Rohde & Schwarz.
Jan 18, 2024 | AN-No. 1SL406
采用全桥拓扑的电源转换器常用于要求紧凑、高效和成本效益的通信应用与服务器,因此变得更加复杂。构建出第一个原型之后,包括同步整流开关在内的所有主要的一次开关都需要验证其开关模式。这种验证非常复杂,需要正确测量开关模式,以防止开关模式出现严重问题。为了发现电源转换器开关过程中出现的意外情况,需要利用专业知识和合适的测量工具。
1月 17, 2024
Rohde & Schwarz offers a powerful tool for remote control of their oscilloscopes - the RsInstrument Python module. This module enables users to control and automate their Rohde & Schwarz test & measurement instruments, including oscilloscopes, through Python scripts or interactive console communication.
Dec 14, 2023
6G 通信和传感等新技术与应用扩展到了 D 频段和更高的亚太赫兹 (sub-THz) 频率范围。新的半导体技术和工艺需要实现商业化,以为这些新应用提供支持。
12月 12, 2023
This application note describes Methods of Implementation (MOI) for precise, fast, and error-free compliance testing of USB Type-C to Type-C cable assemblies supporting USB4 Gen3, USB4 Gen2, USB 3.2 Gen2, USB3.2 Gen1, and USB2.0.
Nov 30, 2023 | AN-No. 1SL405
This application note describes Methods of Implementation (MOI) for precise, fast, and error-free compliance testing of USB 3.2 Legacy Cable Testing for USB Type A, Type B, and Micro family connector types. Based on 5 Gbps and 10 Gbps signaling per lane with vector network analyzers from Rohde & Schwarz.
Nov 09, 2023 | AN-No. 1SL408
电源转换器在任何情况下都需要稳定运行。大部分转换器会在不同条件下工作,例如不同的负载阶跃、启动/关闭序列和输入电压变化。除了标准反馈控制环路之外,转换器的脉冲宽度调制 (PWM) 控制器还提供扩展功能,包括线路前馈环路控制和软启动控制。这些扩展控制功能可以在特定条件下更好地调节电源转换器。这种复杂的调节系统需要利用尖端方法,保证转换器在所有模式下都能正常运行。这需要运用渊博的专业知识和合适的测量工具来发现并定位系统中的意外情况。
10月 11, 2023