相关实验视频

Updated: Jul 18, 2025

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

Published on: May 1, 2018

一个改进的性能雷达传感器用于K频汽车雷达

Anwer S Abd El-Hameed^1,2, Eman G Ouf¹, Ayman Elboushi¹

¹Electronics Research Institute, Cairo 4473221, Egypt.

Sensors (Basel, Switzerland)

|August 26, 2023

概括

使用分环共振器元件的新平面网格天线阵列 (PGAA) 提高了汽车雷达性能. 这种超宽带 (UWB) 天线设计增强了高级驾驶辅助系统的增益和带宽.

科学领域:

电气工程电气工程
天线理论天线理论
微波工程微波工程

背景情况:

汽车雷达系统需要高性能天线才能可靠运行.
超宽带 (UWB) 技术在雷达应用中在分辨率和透度方面具有优势.
现有的天线设计可能面临着对先进的汽车传感的增益和带宽的限制.

研究的目的:

为汽车UWB雷达提供一种新的平面网格天线阵列 (PGAA) 配置.
为了增强天线增益和阻抗带宽,使用分环共振器 (SRR) 元素和超层层.
为了验证拟议的天线是否适用于汽车雷达应用.

主要方法:

设计和模拟一个在24 GHz频段运行的31个辐射元件的PGAA.
整合分环共振器 (SRR) 元素以提高带宽和增益.
增加了一层超层介电层,以进一步优化天线性能.
在系统实现中使用MIMO概念.

主要成果:

拟议的PGAA在24 GHz实现了16.5dBi的增益,改进了2.7dB.
阻抗带宽被提升到9.3GHz (37.7%).
测量阻抗带宽范围从20GHz到29.3GHz (S11<-10dB). 测量阻抗带宽范围从20GHz到29.3GHz (S11<-10dB). 测量阻抗带宽范围从20GHz到29.3GHz (S11<-10dB).

结论:

新的PGAA设计有效地提高了UWB汽车雷达的增益和带宽.
集成SRR元件和超层层显著提高天线性能.
经过验证的天线配置适用于下一代汽车雷达传感应用.

关键词:

这就是"MIMO MIMO".这是一个PGAAA.这就是SRRR的意思.在UWB中,UWB是UWB.汽车雷达汽车雷达雷达这是一个超级层.

更多相关视频

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Published on: February 1, 2020

Harmonic Radar Tags for Insect Tracking: Lightweight, Low-cost, and Accessible

Harmonic Radar Tags for Insect Tracking: Lightweight, Low-cost, and Accessible

Published on: May 13, 2025

相关概念视频

Doppler Effect - II

Doppler Effect - II

The Doppler effect has several practical, real-world applications. For instance, meteorologists use Doppler radars to interpret weather events based on the Doppler effect. Typically, a transmitter emits radio waves at a specific frequency toward the sky from a weather station. The radio waves bounce off the clouds and precipitation and travel back to the weather station. The radio frequency of the waves reflected back to the station appears to decrease if the clouds or precipitation are moving...