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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Generalized high-isolation n-way Gysel power divider with arbitrary power ratio and different real terminated impedances
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Generalized high-isolation n-way Gysel power divider with arbitrary power ratio and different real terminated impedances

机译：具有任意功率比和不同实际端接阻抗的通用高隔离n路Gysel功率分配器

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摘要

An exact closed-form design approach for a generalized high-power n-way Gyselpower divider is proposed. The power divider could be designed to achieve an arbitrarypower ratio with the flexible multiway application, arbitrary real terminatedimpedance, excellent isolation, and easy fabrication through both planar and threedimensionalstructures. Moreover, this improved power divider could maintainhigh power processing capacity through the coaxial cavity transmission line andgrounding resistances. The exact analytical solutions related to ideal port matchingand high isolation are obtained based on the circuit and transmission-line theory.To verify the proposed approach, a compact 3-way coaxial power divider with apre-designed power ratio of 1:1.5:2 and four different real terminated impedancesof 50, 55, 60, and 65 Ω is designed and fabricated. Excellent agreement is achievedbetween the simulated and measured results. Measurements from 4.7 to 5.7 GHzshow that the return losses of all input and output ports are better than 15 dB. Themaximum insertion loss is 0.5 dB, and the phase imbalance is approximately lessthan 6.1°. In addition, the isolation between any two output ports is better than23 dB from 4.5 to 6 GHz. Meanwhile, the power handling capability can reach themaximum power of the commercial 50 Ω SMA connectors (2.098 kW).
机译：提出了一种通用的大功率n路Gyselpower分频器的精确闭式设计方法。可以通过灵活的多路应用，任意的实际端接阻抗，出色的隔离以及通过平面和三维结构轻松制造来设计功率分配器，以实现任意功率比。而且，这种改进的功率分配器可以通过同轴空腔传输线和接地电阻保持高功率处理能力。基于电路和传输线理论，获得了与理想端口匹配和高隔离度相关的精确解析解决方案。为验证该方法，设计了一种紧凑型三路同轴功率分配器，其预先设计的功率比为1：1.5：2，并且设计并制作了四种不同的实际端接阻抗，分别为50、55、60和65Ω。模拟结果和测量结果之间达到了极好的一致性。在4.7至5.7 GHz的测量范围内，所有输入和输出端口的回波损耗均优于15 dB。最大插入损耗为0.5 dB，相位不平衡度大约小于6.1°。此外，在4.5至6 GHz的频率下，任意两个输出端口之间的隔离度均优于23 dB。同时，功率处理能力可以达到商用50ΩSMA连接器的最大功率（2.098 kW）。

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