Journal of Electromagnetic Waves and Applications ( IF 1.3 ) Pub Date : 2021-04-08 , DOI: 10.1080/09205071.2021.1911687 Hong Peng 1 , Peng Lei 2 , Hong Yang 2 , Shiwei Zhao 2 , Xiaolun Ding 2
A complementary tunable method is proposed based on the Hybrid coupler. The odd-even mode analysis shows that the method can achieve continuously tunable power division ratio by changing two transmission lines in the circuit, and it can achieve larger tunable range by improving the complementary tunable method based on the cascaded Hybrid coupler. Using the improved method, a novel π-type reconfigurable coupler, which works at 2.45 GHz, is designed by replacing transmission lines with π-type circuit. The power division ratio of the fabricated reconfigurable coupler is changed in the range of −20.5–21.3 dB, with the bias voltage being 0∼6 V; meanwhile, the isolation and return loss are above 20 dB.
中文翻译:
基于互补可调方法的Π型可重构耦合器
提出了一种基于混合耦合器的互补可调方法。奇偶模分析表明,该方法可以通过改变两个通过改进基于级联混合耦合器的互补可调方法,可以实现更大的可调范围。采用改进方法,设计了一种工作频率为 2.45 GHz 的新型 π 型可重构耦合器。传输线采用π型电路。制作的可重构耦合器的功分比在-20.5~21.3 dB范围内变化,偏置电压为0~6 V;同时,隔离度和回波损耗均在 20 dB 以上。