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Updated: Jun 18, 2025

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讨论和展示RF-MEMS减弱器设计概念和模块,用于超越5G和6G场景的先进光束成形-第二部分

Girolamo Tagliapietra¹, Flavio Giacomozzi¹, Massimiliano Michelini¹

¹Center for Sensors and Devices (SD), Fondazione Bruno Kessler (FBK), 38123 Trento, Italy.

|July 27, 2024

概括

这项研究引入了用于光束成形的新型可重新配置的射频微电机械系统 (RF-MEMS) 衰减器. 这些低压设备在广泛的频率范围内实现了精确的,相当大的信号衰减.

科学领域:

电气工程电气工程
材料科学材料科学材料科学
微波工程微波工程

背景情况:

可重新配置的RF-MEMS衰减器对于先进的光束成形应用至关重要.
现有的设计往往需要高电压或缺乏微调能力.
之前的工作建立了低压1位衰减模块.

研究的目的:

建议和评估用于光束成形的新型RF-MEMS减弱器概念.
开发一个低压3位衰减器,用于微调信号衰减.
用制造的Pi形电阻设计来研究实质性的衰减水平.

主要方法:

开发1位衰减模块,配有串行电阻和分流电阻 (7-9 V).
配备Pi形电阻的共平面波导 (CPW) 段的制造和测试.
设计和模拟一个低压24态衰减器,结合不同的衰减技术.

主要成果:

一个3位衰减器在24.25-27.5 GHz范围内实现了微调衰减 (<-10 dB).
Pi形电阻使得-15,-30和-45dB的显著衰减,曲线平坦,回报损失低.
模拟的24状态衰减器在稳定的性能下达到近-50dB的衰减.

结论:

拟议的RF-MEMS减弱器设计为光束成形提供了有效的解决方案.
低压运行和高衰减水平可以通过新的配置实现.
集成设计为苛刻的应用提供了对信号衰减的精确控制.

关键词:

5G是什么意思? 5G是什么意思?B5G 是一个B5G.无线电频率MEMS是什么意思减弱器是一种减弱器.梁造型梁造型梁造型梁造型低启动电压的低启动电压.

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