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1部分
Girolamo Tagliapietra1, Flavio Giacomozzi1, Massimiliano Michelini1
1Center for Sensors and Devices (SD), Fondazione Bruno Kessler (FBK), 38123 Trento, Italy.
Sensors (Basel, Switzerland)
|April 13, 2024
概括
本研究介绍了用于光束成形的射频微型电机系统 (RF-MEMS) 衰减器模块. 这些模块提供高达40 GHz的精确衰减,并且可以成为未来可重新配置系统的构建块.
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:
- 波束成形应用需要精确的信号减弱.
- 无线电频率微型电机系统 (RF-MEMS) 为小型化和高效的射频组件提供了潜力.
- 共平面波导 (CPW) 结构通常用于高频射频电路集成.
研究的目的:
- 设计和描述用于光束成形的新型宽带RF-MEMS减弱器模块.
- 根据执行电压,拓和衰减级别,研究不同的衰减器模块变体.
- 为了评估这些模块在高达40 GHz的频率上的性能.
主要方法:
- 在CPW结构中设计和制造RF-MEMS减弱器模块.
- 制造样本的表征,重点关注衰减水平 (-2, -3, -5 dB) 和执行电压 (5-9 V, ~45 V).
- 将模拟结果与测量结果进行比较,以验证设计性能.
主要成果:
- 制造的1位衰减模块,其足迹为690 × 1350 μm2.2.
- 达到高达40GHz的精确衰减水平,系列和分流变种分别达到近-3dB和-5dB.
- 在模拟和测量性能之间证明一致性,验证拟议的设计.
结论:
- 拟议的RF-MEMS减弱器模块适用于光束成形应用中的精确减弱.
- 这些模块可以作为宽带和可重新配置的RF-MEMS减弱器的有效构建块.
- 对更高衰减水平的组合进行进一步的研究是有必要的.
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