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首页> 外文期刊>Microwave Magazine, IEEE >Load Pull Simulation Speeds Design of Wideband High-Efficiency PAs
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Load Pull Simulation Speeds Design of Wideband High-Efficiency PAs

机译：负载牵引仿真加快了宽带高效功率放大器的设计

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For decades, load pull testing, which involves varying the load impedance presented to a device under test (DUT) to monitor a single performance parameter or set of parameters, has been an essential tool for characterizing RF and microwave power devices. The advantage of such a method lies in the relative simplicity of the test system components, including a power meter and a single tuner that can be easily and inexpensively assembled. The disadvantage of a traditional load pull system for designing wideband high-efficiency power amplifiers (PAs) lies in the limited information provided by scalar measurement instruments. Vector-based parameters cannot be measured without introducing a dedicated network analyzer. Additionally, measurement accuracy requires reliable de-embedding of the data measured through the passive components between the power meter and load tuner, as well as through the output tuner to the DUT reference plane. Cripps [1] offers a more detailed discussion of load pull measurements and contours.
机译：几十年来，负载拉力测试一直是表征RF和微波功率器件的重要工具，该测试涉及改变提供给被测器件（DUT）的负载阻抗以监视单个性能参数或一组参数。这种方法的优点在于测试系统组件的相对简单，包括功率计和单个调谐器，这些组件可以容易且廉价地组装。用于设计宽带高效功率放大器（PA）的传统负载牵引系统的缺点在于标量测量仪器提供的信息有限。如果不引入专用的网络分析仪，就无法测量基于矢量的参数。另外，测量精度要求可靠地去嵌入通过电表和负载调谐器之间的无源组件以及通过输出调谐器到DUT参考平面的测量数据。 Cripps [1]提供了有关负载拉力测量和轮廓的更详细的讨论。

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