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Near and far field

The near field and far field are regions of the electromagnetic (EM) field around an object, such as a transmitting antenna, or the result of radiation scattering off an object. Non-radiative near-field behaviors dominate close to the antenna or scatterer, while electromagnetic radiation far-field behaviors predominate at greater distances.

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Explore the main themes, entities and connections around Near and far field. Start with the topic map, then use the sections below for research and deeper semantic analysis.

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Overview

Introduction

Summary of regions and their interactions

Definitions

Near-field characteristics

Classical EM modelling

Public domain

Advanced semantic analysis

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Map overview Semantic statistics

Near and far field

Nodes82
Edges81
Triples4
Avg. degree1.98
Density0.02439
Components1

How this topic connects Entity context

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Important terminology Word statistics

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Important terminology

field antenna near region far near-field distance energy fields electric far-field electromagnetic magnetic power wavelength radiation reactive effects source wave

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
those used in the touchscreens of smart phonesinstance ofparticularly in the development of capacitive sensing technologies0.80text
tablet computersinstance ofparticularly in the development of capacitive sensing technologies0.80text
steel beams can act as antennas by inductively receivinginstance ofmetal objects0.80text
theninstance ofmetal objects0.80text

Related concept clusters Concept neighborhoods

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    Connections between topic areas Semantic bridges

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