R&S®PWC200 平面波转换器

适用于 5G 大规模 MIMO 基站测试

R&S®PWC200
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R&S®PWC200

主要特点

  • 相控天线阵在可调静区内(如直径为 1 m)生成平面波
  • 无需近远场变换
  • 与基于紧缩场 (CATR) 的系统相比,所需空间减少四分之三
  • 内置自测试功能
  • 适用于研发和生产测试

在 5G 大规模 MIMO 基站近场范围内即时测量远场特性

R&S®PWC200 平面波转换器是由 156 个宽带维瓦第天线组成的双向阵列,每个天线都位于被测设备 (DUT) 的辐射近场。相控天线阵可以在 5G 大规模 MIMO 基站的辐射近场中的指定静区内形成平面波,以便进行实时辐射功率和收发信机测量(误差矢量幅度、邻道泄漏比和频谱发射模板测量等)。

特性和优点

紧凑的基站测试系统设计

在近场范围内进行远场测量

R&S®PWC200 可以极大地减少远场测量所需的距离。此转换器可以在 1.5 m 的距离对孔径为 1 m、频率为 3.5 GHz 的 5G 大规模 MIMO 基站进行 OTA 测试。通常情况下,直接远场测量所需的测量距离为 23.5 m。R&S®PWC200 便于测试实验室和制造商节省空间,同时不会降低测量准确度。

R&S®PWC200 平面波转换器
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R&S®PWC200 带参考天线

多功能静区模拟

轻松配置静区直径和测试距离

R&S®PWC200 支持电磁场合成,且电磁场在测试装备的准确过程中进行编程。R&S®AMS32-K61 场模拟软件可根据多种参数进行模拟,例如所需的静区直径和测试距离。这种灵活配置便于 R&S®PWC200 结合相同的静态测试装置测量不同大小的基站。

R&S®PWC200 平面波转换器
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场模拟结果

3.5 GHz 条件下距离天线阵列 1.5 m 的静区中的电场分布结果示例

自动化现场校准

使用 R&S®AMS32 软件在现场快速进行自动化自校准,无需任何移动

R&S®AMS32-K65 场和路径损耗校准软件结合 R&S®PWC-CAA1 校准天线,可在现场自动校准和验证 R&S®PWC200。此流程无需移动反向天线。这样可以简单、快速、频繁地验证并维持一流的测量准确度。

R&S®PWC200 平面波转换器
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R&S®PWC200 结合 R&S®PWC-CAA1

包含 R&S®PWC200(左)和 R&S®PWC-CAA1 校准天线(右)的校准和验证系统装置。

电子近场扫描

自动化功率因数校准和功率密度测量

R&S®AMS32-K69 功率密度测量软件可测量 5G 大规模 MIMO 基站辐射的功率密度的平面分布。此功能在无定位系统的生产测试中尤为有用。R&S®PWC200 可以针对基站的电控波束轻松验证 +/- 10° 小倾斜角,并显示峰值区域。

R&S®PWC200 平面波转换器
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功率因数 (PF) 空间分布图

RMS(左)和峰值(右)功率密度示例。3.4 GHz 条件下 TDD 信号的空间分布。

R&S®PWC200 软件工具

全面的 R&S®PWC200 软件工具便于轻松进行配置

R&S®PWC200 可通过 R&S®AMS32 系统软件或客户的特定 OTA 软件进行控制。四款 R&S®AMS32 工具可用作独立的可执行程序:场模拟 (R&S®AMS32-K61)、场和路径损耗校准 (R&S®AMS32-K65)、自测试和硬件验证 (R&S®AMS32-K67) 以及功率密度测量 (R&S®AMS32-K69)。用户界面布局清晰,配置数据集以 CSV 文件格式显示。

R&S®PWC200 平面波转换器
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R&S®PWC200 系统软件架构

相关解决方案

5G NR 测试

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5G OTA/大规模 MIMO 测试

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IoT 测试

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1. The prize draw “10 years Rohde & Schwarz oscilloscopes” (herein referred to as “Draw”) is organized by Rohde & Schwarz GmbH & Co. KG, Mühldorfstraße 15, 81671 Munich, Germany, Tel. +49 89 41 29 0 (herein referred to as “R&S).

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