一个MMIC LNA用于毫米波雷达和5G应用,采用GaN-on-SiC技术
Chaoyu Huang1, Zhihao Zhang1, Xinjie Wang1,2
1School of Integrated Circuit, Guangdong University of Technology, Guangzhou 510006, China.
Sensors (Basel, Switzerland)
|July 29, 2023
概括
本研究介绍了一种基于化 (GaN) 的紧型单立体微波集成电路 (MMIC) 低噪声放大器 (LNA),用于5G毫米波频段. 设计的LNA实现了优异的增益和低噪声,这对于先进的无线通信至关重要.
科学领域:
- 微波工程 微波工程
- 半导体设备 半导体设备
- 无线通信无线通信
背景情况:
- 第五代 (5G) 移动系统需要用于毫米波波段的高频组件.
- 低噪音放大器 (LNA) 对于在敏感接收器中保持信号完整性至关重要.
- 高电子移动性晶体管 (HEMT) 在高频应用中提供卓越的性能.
研究的目的:
- 设计和描述一个单一的微波集成电路 (MMIC) 低噪声放大器 (LNA).
- 为了确保与5G毫米波频段n257 (26.5-29.5 GHz) 和n258 (24.25-27.5 GHz) 的兼容性.
- 为了实现噪声值 (NF) 和小信号增益之间的平衡,同时提高稳定性.
主要方法:
- 使用的化 (GaN) 在SiC上的高电子移动性晶体管 (HEMT).
- 使用与源相连的传输线路,通过非线性小信号等效电路进行分析.
- 实施的稳定性增强技术:源退化,RC系列网络和RF窒息.
- 采用混合匹配网络 (MN) 采用宽带性能联合设计策略.
主要成果:
- 在指定频段实现了18.2-20.3dB的线性增益.
- 获得的噪声值 (NF) 范围为2.5-3.1dB.
- 已证明输出输入返回损失大于10dB.
- 三级MMIC LNA具有2.5 × 1.5 mm2的紧尺寸.
结论:
- 设计的基于GaN的MMIC LNA符合5G和毫米波雷达应用的严格要求.
- 混合匹配网络联合设计战略有效地平衡了收益,收益损失和噪声数字.
- 实施的稳定性措施确保了目标频段的可靠运行.
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