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基于人工传输线的小型平衡型 Wilkinson 功分器
Compact balanced Wilkinson power divider using artificial transmission lines
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摘要: 提出了一种基于人工传输线并采用双面平行带状线实现的小型平衡型 Wilkinson 功分器。该器件采用人工传输线取代传统传输线以减少电路尺寸,同时引入双面平行带状线结构用来实现功分器平衡的功能。设计的功分器尺寸仅为传统Wilkinson 功分器的25%。测试结果表明,设计制作的平衡 Wilkinson 功分器在0.83 GHz 至1.05 GHz 带宽范围内相位平衡度±1.28°,幅度平衡度±0.17 dB,回波损耗大于16.79 dB,端口隔离度大于16.21 dB。测量结果和仿真结果吻合良好,证实了该功分器具有良好的性能。
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关键词:
- 平衡 /
- 小型化 /
- Wilkinson 功分器 /
- 人工传输线 /
- 双面平行带状线
Abstract: This paper proposes a compact balanced Wilkinson power divider based on artificial transmis-sion lines using double-sided parallel-strip lines.The design consists of artificial transmission lines to replace conventional transmission lines to save circuit size.In the meantime,the structure of double-sided parallel-strip lines is introduced to achieve balanced function.The proposed power divider is about 25% the place of a conven-tional divider.The measurements show that such a balanced Wilkinson power divider at operational frequency ranging from 0.83 GHz to 1.05 GHz has ±1.28°phase balance and ±0.1 7 dB amplitude balance.At all ports return losses are more than 1 6.79 dB and good isolation between the two output ports is greater than 1 6.21 dB. The measurements agree well with simulation results,demonstrating that this power divider has good perform-ance. -
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