Each of the various methods for mixed-mode load-pull measurements, which can be found in literature, has its own advantages and disadvantages. In this publication, we analyze two of the most commonly used setups and a third setup of which we provided an initial treatment in a previous publication. We investigated the impact of 180° hybrids on the tuning capabilities of a mixed-mode load-pull system. Furthermore, we provide a rule-of-thumb to easily estimate this impact using only some specifications of hybrids. For all analyzed setups, we use measurement results to show that the tuning range of the newly proposed setup is superior compared to the other setups, though hardware effort and tuning complexity are greater.

中文翻译：

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混合模式负载牵引测量、混合缺陷和调谐范围的不同负载配置

可以在文献中找到的混合模式负载牵引测量的各种方法中的每一种都有其优点和缺点。在本出版物中，我们分析了两种最常用的设置和第三种设置，我们在之前的出版物中提供了初步处理。我们研究了 180° 混合对混合模式负载牵引系统的调谐能力的影响。此外，我们提供了一个经验法则，以便仅使用一些混合规格来轻松估计这种影响。对于所有分析的设置，我们使用测量结果表明新提出的设置的调谐范围优于其他设置，尽管硬件工作量和调谐复杂性更大。