基于6位毫米波相位变换器实际电路参数的混合光束成形系统的设计
Mohammed A Alqaisei1, Abdel-Fattah A Sheta1, Ibrahim Elshafiey1
1Electrical Engineering Department, King Saud University, Riyadh 11421, Saudi Arabia.
Micromachines
|July 8, 2023
概括
这项研究设计了一个6位毫米波相位变换器,使用45nm的CMOS SOI技术用于混合波束成形系统. 精确的相变器模型显著影响多用户MIMO性能,优化的数据流提高了传输速率.
科学领域:
- 电气工程 电气工程
- 电信工程 电信工程 电信工程
- 集成电路设计 集成电路设计
背景情况:
- 毫米波 (mmWave) 频率对于下一代无线系统至关重要,需要高效的光束成形技术.
- 混合光束成形提供了数字和模拟光束成形复杂性和性能之间的平衡.
- 精确建模射频集成电路 (RFIC) 组件,如相变器,对于系统模拟至关重要.
研究的目的:
- 为在28 GHz工作的混合光束成形系统设计和描述一个6位相位变换器.
- 为了评估相变器电路参数准确度对多用户MIMO系统性能的影响.
- 分析数据传输速率,错误矢量大小 (EVM) 和系统参数之间的权衡.
主要方法:
- 使用45纳米CMOS在绝缘体 (SOI) 技术与切换LC元件的6位相变器的设计.
- 将设计的相变器电路参数集成到多用户MIMO的混合光束成型模拟模型中.
- 用精确的RFIC模型和理想的相位变换器参数对不同数量的用户和数据流进行系统性能模拟.
主要成果:
- 阶段变速器射频组件模型的准确性显著影响多用户MIMO系统的性能.
- 优化每个用户并行数据流的数量可以提高数据速率,同时保持可接受的错误向量大小 (EVM).
- 随机分析显示,逻辑-逻辑和逻辑分布最适合实际和理想相变器的RMS EVM.
结论:
- 精确的RFIC组件建模,特别是相变器,对于可靠的混合光束成形系统设计和模拟至关重要.
- 在多用户MIMO系统中,可以通过优化用户数据流和考虑天线配置的权衡来实现性能增长.
- 开发的相位变换器设计和模拟方法为毫米波系统开发提供了宝贵的见解.
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