3 结果
Testing RF devices, like power amplifiers, requires a certain input power at the device under test (DUT). Sometimes, more power than a signal generator can deliver is needed. This may be the case when devices require higher input power, or when they need to be connected using long cables, which introduce large insertion losses at high frequencies. In these cases, an external amplifier can be used to deliver the required power to a DUT.This application note gives a guideline how to increase the power delivered to a DUT by an R&S®SMW200A vector signal generator using an external amplifier.It covers shifting the power reference plane from the generator output to the DUT input using an R&S®NRP power sensor and mitigating linear and nonlinear distortions using an R&S®FSW signal and spectrum analyzer.
Mar 12, 2025 | AN-No. 1GP143
This application note addresses the diverse possibilities of interoperability between Rohde & Schwarz power sensors and Rohde & Schwarz signal generators. All current and many legacy Rohde & Schwarz signal generators offer the capability of directly connecting power sensors. This enables power measurements without the need of a base unit or separate PC to display the readings. Furthermore, sensors can be used for special tasks like filling a user correction table or continuously controlling levels at crucial points in the measurement configuration.
Aug 31, 2023 | AN-No. 1GP141
入门指南
功率探头是射频工程领域的基本测量工具。但是，目前市场上的功率探头不胜枚举，许多产品号称在测量速度和每秒读数等方面性能非凡。因此，要辨别这些夸张之语、确定真正满足特定测量要求的探头是一个难题。本入门指南概述射频功率探头的基础知识，重点介绍了一些重要特性，以协助选择适合每种应用的探头。指南包括三个部分。第一部分介绍选择正确的探头类型：多路径、宽带、平均功率和热功率探头能够满足略有不同的测量需求。第二部分描述探头性能的五种主要特性和各类要求应重点关注的特性。最后，指南简要介绍了三种将探头集成到测量应用的方法。
5月 26, 2021