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相关概念视频

Dual Nature of Electromagnetic (EM) Radiation01:10

Dual Nature of Electromagnetic (EM) Radiation

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Electromagnetic (EM) radiation consists of electric and magnetic field components oscillating in planes perpendicular to each other and mutually perpendicular to radiation propagation through space. EM radiation can be classified as a wave, characterized by the properties of waves such as wavelength (denoted as λ) and frequency (represented by ν).
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the...
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相关实验视频

Updated: Jul 10, 2025

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

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一个带有双向终火辐射的印刷双极阵列,用于道通信.

Tianfan Xu1, Mengchi Xu1, Haitao Lu1

  • 1Research Center of Applied Electromagnetics, Nanjing University of Information Science and Technology, Nanjing 210044, China.

Sensors (Basel, Switzerland)
|November 25, 2023
PubMed
概括

这项研究引入了一种新的打印双极阵列,用于高效的道通信. 该设计实现了双向终火辐射,克服了传统漏电的同轴电缆的局限性.

科学领域:

  • 电气工程 电气工程
  • 天线理论天线理论
  • 无线通信无线通信

背景情况:

  • 道通信面临着路径损失和多路径效应等挑战.
  • 传统的漏电同轴电缆是昂贵的,难以部署和维护.

研究的目的:

  • 为改进道通信设计一个低档次的打印双极阵列.
  • 为了在3.5 GHz实现双向终火辐射.

主要方法:

  • 使用最大功率传输效率 (MMPTE) 的方法.
  • 通过模拟向虚拟端火天线传输功率来优化元素的振幅和相位.

主要成果:

  • 设计了一种八元印刷双极阵列,能够同时发射双向端火束.
  • 达到10.7dBi的峰值终火增益,从3.23GHz到3.66GHz保持超过10dBi.
  • 标准化的交叉极化水平在近视角和高度平面下保持在-22.3dBi以下.

结论:

  • 设计的印刷双极阵列为道通信提供了可行的解决方案.
  • 该阵列的性能特性适合于苛刻的道环境.
关键词:
双向的终点火灾辐射辐射.这是最大功率传输效率的方法.打印的二极管阵列列.道通讯通讯道的通讯方式

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