Song Ho Seung, Ghergherehchi Mitra, Oh Seyoung, Chai Jong Seo
College of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, South Korea.
Department of Energy Science, Sungkyunkwan University, Suwon 16419, South Korea.
Rev Sci Instrum. 2017 Mar;88(3):034706. doi: 10.1063/1.4978652.
We design a stripline-type Wilkinson power divider and combiner for a 3.2 kW solid-state radio frequency (RF) amplifier module and optimize this setup. A Teflon-based printed circuit board is used in the power combiner to transmit high RF power efficiently in the limited space. The reflection coefficient (S) and insertion loss (S) related to impedance matching are characterized to determine the optimization process. The resulting two-way divider reflection coefficient and insertion loss were -48.00 dB and -3.22 dB, respectively. The two-way power combiner reflection coefficient and insertion loss were -20 dB and -3.3 dB, respectively. Moreover, the 3.2 kW solid-state RF power test results demonstrate that the proposed power divider and combiner exhibit a maximum efficiency value of 71.3% (combiner loss 5%) at 48 V supply voltage.
我们为一个3.2千瓦固态射频（RF）放大器模块设计了一种带状线型威尔金森功率分配器和合成器，并对该设置进行了优化。功率合成器中使用了基于聚四氟乙烯的印刷电路板，以便在有限空间内高效传输高射频功率。对与阻抗匹配相关的反射系数（S）和插入损耗（S）进行了表征，以确定优化过程。所得的双向分配器反射系数和插入损耗分别为-48.00分贝和-3.22分贝。双向功率合成器反射系数和插入损耗分别为-20分贝和-3.3分贝。此外，3.2千瓦固态射频功率测试结果表明，所提出的功率分配器和合成器在48伏电源电压下表现出71.3%的最大效率值（合成器损耗5%）。
