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    • 8990B 峰值功率分析仪 [已淘汰]

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    8990B 峰值功率分析仪

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    技术指标

    • 160 MHz 视频带宽
    • 100 MSa/s 连续采样,速度 >1500 读数/秒
    • 频率范围:50 MHz 至 40 GHz(取决于传感器)
    • 5ns 的超快系统上升时间/下降时间

    测量类型

    • 15 个测量参数:上升时间、下降时间、脉宽、占空比、PRI、PRF、峰值、平均值、峰均比、CCDF 等
    • 自动时延测量、自动倾斜测量、脉冲间隔测量
    • 多脉冲分析(使用选件 8990B-1FP 或 N6903A)
    • 附加功率效率(PAE)测量

    校准 

    • 内置归零和校准

    更快、更精确和更详细的脉冲测量 

    8990B 峰值功率分析仪是专门用于测量和分析射频脉冲的高性能射频峰值功率计。8990B 可实现 5 ns 的上升时间/下降时间(与 N1923A/N1924A 宽带功率传感器配合使用),创造了峰值功率测量市场中的新记录,使研发工程师和技术人员可以在模块设计、验证和故障诊断过程中以高精度捕获更短的脉冲测量结果。 

    8990B 拥有两个射频通道和两个视频通道,可测量射频和微波功率的动态或时间相关特性。8990B 的采样率高达 100 MSa/s,研发工程师由此可以获得需要的高分辨率来探测信号迹线中的异常情况,从而对设计进行改进。

    使用简单、容易触发、方便测量

    8990B 峰值功率分析仪配有 15 英寸 XGA 彩色触摸屏,能够同时显示四个通道的结果,获得更详细的图像。8990B 提供内部和外部触发功能,以及 15 种脉冲参数测量和游标测量, 包括上升时间、下降时间、脉冲倾斜、脉冲宽度和时延等。 

    8990B 与 N1923A(50 MHz 至 18 GHz)和N1924A(50 MHz 至 40 GHz)宽带功率传感器结合使用,可进行性能最高的峰值功率测量。  

    实现更快的测量速度和更高的测量精度

    多脉冲测量
    查看、测量和分析来自功率放大器模块或发射机的连续脉冲序列。多脉冲测量功能支持连续触发,可捕获多达 512 个脉冲。该功能还给 8990B 增添了脉冲至脉冲测量和直方分布图功能,这对于测试射频、功率放大器和发射机的脉冲至脉冲稳定度至关重要。此外,用户可以使用多脉冲测量功能来分析短脉冲(在整个脉冲序列上静寂时间较长或幅度逐渐下降),或监测脉冲形状的稳定度(通过直方图功能)。

    附加功率效率运算功能
    使用 8990B 可以计算功率放大器的附加功率效率(PAE),并在屏幕上即时显示 PAE 迹线。附加功率效率是一种典型的功率分析仪测量,主要衡量功率转换效率,即功率放大器将直流功率转换为射频功率的百分比。使用 8990B 还可以降低测试成本和需要使用的测试设备数量; 这款峰值功率分析仪可独立测量射频功率、电压和电流,无需再使用其他仪器。8990B 的两个射频输入通道允许用户测量功率放大器的射频功率增益;通过使用直流电流探头、示波器探头或差分探头,用户还可以测量功率放大器在模拟视频输入通道上的电压和电流。8890B 的 PAE 运算功能根据射频和模拟视频输入通道得到的这些测量结果,便能轻松计算出功率放大器的 PAE。

    可调 ETS 阈值适用于更宽的带宽测量
    8990B 的 160 MHz 视频带宽功能使您可以精确测量 802.11ac 宽带宽信号的峰值功率和峰均功率比。此峰值功率分析仪可以按照猝发长度调整 ETS 阈值,对 80 MHz 或 160 MHz 802.11ac 信号执行功率与时间(PvT)测量。用户还可以使用缩放功能分析和测量 802.11ac 猝发信号的前导码功率。

    如欲了解功率计和功率传感器的更多信息,请访问功率计和功率传感器

    Test and Measurement Test Top 50 - 2011

    《测试与测量世界》2011 年 50 佳产品
     

    Test and Measurement World Best in Test Finalist

    《测试与测量世界》射频/微波测试类别“最佳测试奖”提名

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