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An improved wideband three‐way waveguide power divider based on directional coupler for Ku band application
International Journal of RF and Microwave Computer-Aided Engineering ( IF 1.7 ) Pub Date : 2020-07-14 , DOI: 10.1002/mmce.22349
Yong Wu 1 , Qingsheng Zeng 1 , Yuqiu Shang 1
Affiliation  

In this paper, a directional‐coupler‐based wideband three‐way waveguide power divider is demonstrated. The proposed power divider consists of tapered rectangular waveguide, six‐port directional coupler and iron pentacar‐bonyl terminations. Its fractional bandwidth is 10.99% at 12.9 to 14.4 GHz. In addition, the return loss of all input and output ports is better than 20 dB and the isolation of the three output ports is more than 20 dB. Moreover, the insert loss is better than 5.19 dB including the power division ratio of 4.8 dB and the amplitude imbalance among the three output ports of less than ±0.4 dB. The experimental results agree well with the simulation ones, which indicates the validity of our method. With the above‐mentioned characteristics, the proposed device can be widely used in Ku band communication systems.

中文翻译:

一种改进的基于定向耦合器的宽带三路波导功率分配器,用于Ku波段应用

本文演示了一种基于定向耦合器的宽带三路波导功率分配器。拟议的功率分配器由锥形矩形波导,六端口定向耦合器和五羰基铁终端组成。在12.9至14.4 GHz时,其分数带宽为10.99%。此外,所有输入和输出端口的回波损耗均优于20 dB,三个输出端口的隔离度均高于20 dB。此外,包括4.8 dB的功率分配比和三个输出端口之间的幅度不平衡小于±0.4 dB,插入损耗优于5.19 dB。实验结果与仿真结果吻合良好,说明了该方法的有效性。具有上述特征,所提出的设备可以广泛地用于Ku波段通信系统中。
更新日期:2020-07-14
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