13 结果
in wireless communications, an antenna is an essential device made of conductive metal that transmits or receives electromagnetic radio waves. as the main enabler of wireless communications, antennas must satisfy a number of challenging parameters such as a wide frequency range, flat gain curves and high mechanical stability, so that they can support an ever increasing range of applications.wireless communications testing requires over-the-air (ota) test systems with various antenna types that serve different system functions. a variety of basic antenna designs have become established over time. these include standard gain horn, vivaldi, patch and array antennas. each has unique features that make them ideal for a specific application.test antennas /probes, link/communications antennas and calibration antennas are used in ota test systems.
this document provides the technical specifications of the r&s®ts8991 ota performance test system components.
the r&s®ts8991 ota performance test system performs ota measurements for all important wireless and mobile standards.
english (pd 5214.6545.92)
this data sheet contains the specifications of the r&s®tc-ta18 cross-polarized vivaldi test antenna, the r&s®tc-ta85cp cross-polarized vivaldi test antenna, the r&s®tc-ta85lp linear-polarized vivaldi test antenna and the r&s®tc-ca6 linear-polarized communications antenna.
基于第 16 版规范
3gpp ts38.141-2 定义了 5g nr 基站的辐射一致性测试。 本应用指南介绍了第 16 版规定的所有必要的发射机 (tx) 测试（ts38.141 第 6 章）。有些测试还需要使用罗德与施瓦茨的信号发生器来生成干扰信号。
12月 20, 2019 | an-no. gfm324
english (pd 5214.6522.62)
this document provides the technical specifications of the r&s®ams32 ota performance measurement software.
依据 ts 38.141-2 第 16 版规范的辐射一致性测试
3gpp ts 38.141 技术规范定义了 5g nr 基站 (bs) 的射频 (rf) 一致性测试方法和要求。本应用指南描述了 ts 38.141-2 第 16 版规范第 7 章规定的所有必要的射频接收机测试。本指南还简要介绍了不同的罗德与施瓦茨 ota 天线测试九游官网下载的解决方案，以及这些方案如何适用于基站一致性测试。罗德与施瓦茨针对本应用指南所述的所有测试用例提供合适的九游官网下载的解决方案。
6月 30, 2020 | an-no. gfm325
5g networks will need to offer more capacity and flexibility while lowering the operational expenses of the system. two new technologies can simultaneously address both the increase in capacity and the increase in energy efficiency: virtualization & massive mimo. this white paper provides an overview of test solutions addressing current and future requirements for antenna verification including both conducted and over-the-air (ota) test methods, which result from applying massive mimo antenna technology.this white papers complements the white paper (1ma276) from rohde & schwarz, which introduces fundamental theory behind beamforming antennas and provides calculation methods for radiation patterns, a number of simulation results as well as some real world measurement results for small linear arrays.
nov 11, 2016 | an-no. 1ma286
ts9981h specifications
r&s®ts8991, ota 性能测试系统, r&s®ts8996 交钥匙 emc 和天线测试中心加快了无线智能仪表的上市时间
ota antenna measurements up to the sub-thz range the ats1000 catr based 5g nr mmwave test chamber is fully shielded from the outside world to provide the ideal environment for uninterrupted measurements. future devices beyond 5g might reach into the sub-terrahertz spectrum. the ats1000 simplifies the testing needs because no mechanical modification and no additional rf cabling is required to measure