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雷达应用的前端开发:专注于24 GHz发射器设计

Tahesin Samira Delwar¹, Unal Aras¹, Abrar Siddique²

¹Department of Smart Robot Convergence and Application Engineering, Pukyong National University, Busan 48513, Republic of Korea.

Sensors (Basel, Switzerland)

|December 23, 2023

概括

本研究介绍了一种新的24 GHz无线电频率 (RF) 发射器前端,使用65 nm CMOS技术用于雷达应用. 该设计实现了高输出功率和效率,推进了自动驾驶汽车和遥感技术.

科学领域:

电气工程电气工程
无线电频率 (RF) 工程
半导体设备的设计设计

背景情况:

对于先进的雷达系统的日益增长的需求需要高性能发射器前端.
24 GHz频段对于新兴的雷达应用至关重要.
现有的CMOS技术需要针对24 GHz射频前端性能进行优化.

研究的目的:

使用65nm CMOS技术设计和分析24 GHz射频发射器 (TX) 前端.
集成一个高线性向上转换的混合器和一个可调节的功率放大器 (PA).
为了提高混合器的线性,使用一种新的双重传导路径 (DTP) 技术.

主要方法:

设计了一个基于吉尔伯特细胞的上转换混合器,其中包含一个双重传导通道 (DTP) 与初级 (PTP) 和二级 (STP) 路径.
实现了可调节的AB类双阶段功率放大器 (PA),使用varactors进行同步或分阶调节.
采用65纳米CMOS技术,用于24GHz运行的集成TX前端设计.

主要成果:

实现了11.7dBm的输出功率,功率加效率 (PAE) 为47%.
获得的1 dB压缩点 (OP1dB) 为10.5 dBm.
在TX前端,从1.2V电源中消耗的电量仅为7.5mW.

结论:

拟议的24 GHz CMOS TX前端显示出出色的性能指标.
新的DTP混合器设计显著提高了线性.
该设计有可能推进自动驾驶汽车,工业自动化和遥感中的雷达应用.

关键词:

24 GHz 24 GHz 24 GHz 24 GHz 24 GHz 24 GHz 24 GHz 24 GHz 24 GHz 24 GHz 24 GHz 功率放大器的功率放大器.雷达雷达雷达雷达是一个发射器前端的发射器升级转换混合器的混合器

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