Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Directivity

In electromagnetics, directivity is a parameter of an antenna or optical system which measures the degree to which the radiation emitted is concentrated in a single direction. It is the ratio of the radiation intensity in a given direction from the antenna to the radiation intensity averaged over all directions. Therefore, the directivity of a…

Measurement & Standards

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

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

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Definition

Zenith angleAzimuth angleSpherical coordinateRadiation intensitySteradians
5 related topics

In antenna arrays

Antenna arrayStandard linear array (SLA)Array gain
3 related topics

Relation to beam width

Solid angleBeamwidths
2 related topics

In other areas

Directional couplersAcoustics
2 related topics

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Definition

In antenna arrays

Relation to beam width

Accounting for polarization

In other areas

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Directivity

Nodes30
Edges29
Triples19
Avg. degree1.93
Density0.066667
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Directivity

Top relations

is a · 4
Directivity → important measure because many antennas and optical systems are designed to radiate electromagnetic waves in a single direction or over a narrow-angle, measure of the difference in dB of the power output at a coupled port, parameter of an antenna or optical system which measures the degree to which the radiation emitted is concentrated in a single direction, radiation intensity of an antenna at a particular
related to Definition · 4
Directivity → Here, IEEE, If, The
related to In antenna arrays · 3
Directivity → For, In, SLA
related to Relation to beam width · 3
Directivity → If, Omega, The
related to In other areas · 2
Directivity → The, With
related to Partial directivity · 2
Directivity → It, Partial
related to Expression in decibels · 1
Directivity → The

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

antenna displaystyle array gain lambda elements radiation power direction angle dbi spacing solid pi textstyle eta intensity directive theta total

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Directivityis aparameter of an antenna or optical system which measures the degree to which the radiation emitted is concentrated in a single direction0.90text
Directivityis aimportant measure because many antennas and optical systems are designed to radiate electromagnetic waves in a single direction or over a narrow-angle0.90text
Directivityis aradiation intensity of an antenna at a particular0.90text
Directivityis ameasure of the difference in dB of the power output at a coupled port0.90text
Directivityrelated to DefinitionThe0.60section
Directivityrelated to DefinitionIEEE0.60section
Directivityrelated to DefinitionIf0.60section
Directivityrelated to DefinitionHere0.60section
Directivityrelated to Expression in decibelsThe0.60section
Directivityrelated to In antenna arraysIn0.60section
Directivityrelated to In antenna arraysFor0.60section
Directivityrelated to In antenna arraysSLA0.60section

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.