Antenna Placement

汽车雷达的FDTD电磁仿真介绍

汽车雷达的FDTD电磁仿真介绍

射频工程师多年来一直使用电磁仿真来辅助汽车雷达传感器设计,但高级驾驶员辅助系统(ADAS)日益增长的需求正在改变传统方法。  本文介绍了FDTD带给汽车雷达电路和系统级设计人员的优势,包括模拟非常大的问题,更高效的内存要求以及揭示耦合源的能力。

基于Wireless InSite的WiFi覆盖下的室内传播建模与测量的比较

基于Wireless InSite的WiFi覆盖下的室内传播建模与测量的比较

此演示文稿演示了即使在包含许多墙壁和不同材料类型的多房间环境中,Wireless InSite中的3D射线跟踪代码也能够准确预测接收功率的覆盖范围。 为了验证代码的准确性,Remcom商务办公室的平面图是在带有WiFi天线的软件中建模的,并且使用第三方工具在几个套件中创建接收功率的覆盖图。

时空密集多无线电场景的高保真建模

时空密集多无线电场景的高保真建模

异构移动无线网络的操作使用变得越来越难以验证。  提出了一种通过基于来自较低解析仿真的相邻射线路径构建精确结果的方法,来减少这些高保真度仿真的运行时间。 权衡了此方法在典型城市场景中的速度和准确性,证明了其在满足不断增长的无线信道仿真需求方面的有效性。

Complex 3D Modeling of Sea to Land Scenario

Complex 3D Modeling of Sea to Land Scenario

This paper presents results from sea to land propagation using Wireless InSite. The effort explores the effects of various elements in the scene and how they impact the results. The various elements in the scene include the ships out at sea, the ships docked, the docks themselves, the buildings around the dock area, and the material properties of each.

Indoor Channel Measurement and Prediction for 802.11n System

Indoor Channel Measurement and Prediction for 802.11n System

Significant improvements in the quality and reliability of indoor WLAN communications are claimed for devices with MIMO technology applying 802.11n standards, which allow users to achieve a theoretical data rate up to 300-600 Mbps on a single transmission. This paper presents an analysis of a commercial 802.11n MIMO 2×3 dual band (2.4 and 5 GHz) system focusing on the operational throughput performance over an indoor environment for Line of Sight (LOS) and Non Line of Sight (NLOS) scenarios.

Directional Reconfigurable Antennas on Laptop Computers: Simulation, Measurement and Evaluation of Candidate Integration Positions

Directional Reconfigurable Antennas on Laptop Computers: Simulation, Measurement and Evaluation of Candidate Integration Positions

This study reports on the integration of a novel reconfigurable microstrip antenna capable of reconfiguring both its radiation pattern and frequency response onto a generic laptop computer structure. The purpose of such an exercise is to provide the relevant information necessary to integrate high performance antennas onto structures that can be used in ad hoc communication scenarios as well as other demanding applications.