紧型超宽带威尔金森电源分隔器在平行线条线上与修改的隔离分支
Dong-Jae Go1, Byung-Cheol Min1, Mun-Ju Kim1
1School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
Sensors (Basel, Switzerland)
|June 19, 2024
概括
一个新的设计方法,一个紧的超宽带威尔金森功率分隔器 (PD) 在平行线条 (PSL) 显著提高频率带宽. 这种修改后的设计在隔离分支中使用额外的电容器,实现了139.5%的带宽和更小的尺寸.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 微波工程 微波工程
背景情况:
- 威尔金森功率分隔器对于射频和微波系统中的信号分配至关重要.
- 传统设计往往面临带宽和尺寸的限制,阻碍了现代应用中的性能.
- 平行线条 (PSL) 技术为小型化和性能提高提供了潜力.
研究的目的:
- 提出一个高效的设计方法,用于一个紧的和超宽带的多阶段威尔金森功率分隔器 (PD) 使用平行线条 (PSL) 技术.
- 提高运营频率带宽,减少PD的物理尺寸.
- 开发一个系统的设计方法,使精确的参数确定.
主要方法:
- 通过整合电容器来扩大带宽和减少尺寸来修改隔离分支.
- 为了简化设计,将PSL功率分隔器与两个微带功率分隔器的等价模型.
- 导出设计方程,并使用内部算法来选择最佳参数 (线路阻抗,电阻,电容).
- 使用3D电磁 (EM) 模拟和实验测量,设计和验证5 GHz基本频率的三级PSL PD.
主要成果:
- 拟议的三级PSL威尔金森功率分隔器实现了1.16至6.51GHz的超宽带频率范围,代表了139.5%的带宽.
- 与传统设计相比,实现了显著的尺寸缩小,输电线长短了23% (207°).
- 设计的分隔器表现出0.7至1.4dB之间的低插入损失.
- 3D电磁模拟和测量结果显示出极好的一致性,验证了拟议的设计程序.
结论:
- 拟议的设计方法提供了一种有效的方法,用于在PSL中创建紧的和超宽带的多级威尔金森功率分隔器.
- 电容器在隔离分支中的集成是实现增强带宽和小型化的关键因素.
- 衍生的设计方程和算法为优化PSL功率分隔器参数提供了可靠的工具,用于特定的应用.
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