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一个基于双层微带线路的新型紧宽带准扭曲分支线路合器
Fayyadh H Ahmed1, Rola Saad1, Salam K Khamas1
1Communications Research Group, Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 3JD, UK.
Micromachines
|January 23, 2024
概括
一个新的小型化宽带分支线联接器 (BLC) 使用近似扭曲的双层设计实现了~50%的尺寸缩小. 这种紧的BLC为5G光束成形应用提供了73.9%的宽带宽.
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:
- 分支线合器 (BLC) 是微波电路中的基本组件.
- 传统的BLC通常存在很大的物理尺寸,这限制了它们与紧系统的整合.
- 微型化和宽带性能对于现代无线通信系统至关重要.
研究的目的:
- 提出和演示一个新的,小型化的宽带分支线联接器 (BLC).
- 与传统BLC相比,实现显著的尺寸缩小,同时保持宽带特性.
- 评估拟议的BLC在5G波束成形网络中潜在使用的性能.
主要方法:
- 一种近似扭曲的设计方法,通过将传统的微条线 (BLC) 折叠在双层基板上.
- 使用Z形状微条线路用于输入/输出终端和水平臂.
- 采用周期性加载的慢波结构用于垂直臂,并通过通道连接两截断的部分.
- 在低成本的FR4基板上制造.
主要成果:
- 与传统设计相比,实现了6.4 × 18mm2的紧型BLC尺寸,代表了~50%的小型化.
- 在关键参数方面实现了73.9% (4.6-10 GHz) 的相对带宽.
- 在6 GHz显示出优异的 -13 dB隔离和 -3.1 dB至 -3.5 dB之间的传输系数.
- 实现了输出端口相位差异的90.5°和94.8°.
结论:
- 拟议的半扭曲微型BLC提供了显著的尺寸缩小和宽带性能.
- 该设计适用于集成到紧的微波电路和系统.
- BLC显示了潜力作为一个单位细胞的巴特勒矩阵在sub-6 GHz 5G束形网络.
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