A novel tunable vector-sum filtering power divider (FPD) with arbitrary output phase difference is proposed. It is constructed by a tunable FPD [which has reconfigurable in-/out-of-phase output and arbitrary power division ratios (PDRs)] on the left and a wideband branch-line coupler (BLC) on the right. The output wave from the left FPD forms two orthogonal vectors at each output port of the BLC. The orthogonal vectors are summed up and result in a new vector with phase that is purely determined by the amplitude ratio of the orthogonal vectors. As a result, the phase difference between the new vectors at the outputs of the BLC can be continuously tuned by adjusting the PDR of the left FPD. Detailed theoretical analysis has been given. It shows that the phase difference between the output ports can be flexibly tuned from 0 °C to 360 °C within the full frequency tuning range.

中文翻译：

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具有连续调谐频率和任意输出相位差的可调谐矢量和滤波功率分配器

提出了一种具有任意输出相位差的新型可调矢量和滤波功率分配器(FPD)。它由左侧的可调 FPD [具有可重构的同相/异相输出和任意功率分配比 (PDR)] 和右侧的宽带分支线耦合器 (BLC) 构成。左侧 FPD 的输出波在 BLC 的每个输出端口形成两个正交向量。正交向量相加并产生具有完全由正交向量的幅度比决定的相位的新向量。因此，可以通过调整左侧 FPD 的 PDR 来连续调整 BLC 输出处新矢量之间的相位差。给出了详细的理论分析。