相关实验视频

Updated: Jun 6, 2025

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band

Published on: May 2, 2018

用于便携式接入点的高能效多主动/多被动天线阵列

Muhammad Haroon Tariq¹, Shuai Zhang², Christos Masouros³

¹Smart Wireless Future Technologies (SWIFT) Lab, Under the Research Technology and Innovation Network (RTIN), The American College of Greece (ACG), Ag. Paraskevi, 153 42 Athens, Greece.

|November 27, 2024

概括

本研究介绍了节能,无人机安装的便携式接入点 (PAP),使用新型多主动/多被动寄生天线阵列 (MAMP),在具有挑战性的环境中改善无线连接.

科学领域:

无线通信网络是无线通信网络.
天线阵列设计设计天线阵列设计
电信工程电信工程电信工程

背景情况:

目前的无线网络在各种场景中都难以提供可靠的服务,包括偏远地区,灾区和特殊事件.
现有的基础设施往往缺乏快速部署和覆盖范围扩张所需的灵活性和功率效率.
需要创新的解决方案来增强无线网络的覆盖范围和弹性.

研究的目的:

开发和评估一个节能,自我回收的基站系统,以改善无线连接.
探索使用多主动/多被动寄生天线阵列 (MAMP) 进行无线回程和前程连接.
在具有挑战性和服务不足的环境中解决连接缺口.

主要方法:

使用无人机安装的便携式接入点 (PAP) 来实现灵活的网络部署.
实现多主动/多被动寄生天线阵列 (MAMP) 无线回程和前程.
通过MAMP设计,专注于能源效率和降低硬件复杂性.
调整寄生元素负载值以实现定向光束成形.

主要成果:

MAMP提供了更大的范围和信号强度,同时降低了硬件复杂性和功耗.
该系统的性能与传统的多输入,多输出 (MIMO) 和分相阵列系统相提并论.
通过调整寄生元素负载,可以实现具有高增益和狭窄光束宽度的定向光束.
该MAMP设计确保了有利的辐射特性.

结论:

安装在无人机上的PAP与MAMP为扩展无线网络覆盖范围提供了可行的解决方案.
MAMP天线技术为传统天线系统提供了具有成本效益和功率效率的替代方案.
拟议的系统提高了无线网络的弹性和难以到达的地区的可访问性.

关键词:

梁成型梁成型梁成型梁成型混合天线阵列是一种混合天线阵列.多主动/多被动 (MAMP) 天线阵列.多个输入多个输出 (MIMO)便携式接入点 (PAP) 是指可携带的接入点.辐射条件辐射条件辐射效率的辐射效率是什么

更多相关视频

Author Spotlight: Introduction to Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays

Author Spotlight: Introduction to Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays

Published on: June 13, 2023

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

相关概念视频

Active Filters

Active Filters

Active filters are electronic circuits that use operational amplifiers (op-amps), resistors, and capacitors to filter out unwanted frequency components from a signal. A first-order low-pass active filter is designed to pass signals with a frequency lower than a certain cutoff frequency and attenuate frequencies higher than that cutoff frequency. The transfer function for a first-order low-pass active filter is:

The Antenna Complex

The Antenna Complex

Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency...

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....