capacitive coupling: meaning, definition, pronunciation and examples
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Quick answer
What does “capacitive coupling” mean?
An electrical phenomenon where energy is transferred between circuits or components through an electric field, without a direct conductive connection.
Audio
Pronunciation
Definition
Meaning and Definition
An electrical phenomenon where energy is transferred between circuits or components through an electric field, without a direct conductive connection.
The intentional or unintentional connection of two or more electrical circuits via capacitance (the ability to store an electric charge). This can be a desired design feature in electronics (e.g., for signal coupling) or an unwanted source of interference (crosstalk).
Dialectal Variation
British vs American Usage
Differences
No significant lexical or conceptual differences. Spelling follows standard national conventions (e.g., 'capacitive' vs 'capacative' is not a variant; the term is spelled identically).
Connotations
Identical technical meaning in both varieties.
Frequency
Equally low frequency and confined to technical fields in both regions.
Grammar
How to Use “capacitive coupling” in a Sentence
The [NOUN] exhibits capacitive coupling to the [NOUN].Capacitive coupling between [NOUN PHRASE] and [NOUN PHRASE] causes [EFFECT].To [VERB] the signal, we use capacitive coupling via a [NOUN].Vocabulary
Collocations
Examples
Examples of “capacitive coupling” in a Sentence
verb
British English
- The traces are capacitively coupled, leading to crosstalk.
- The two nodes couple capacitively through the air gap.
American English
- The adjacent wires capacitively couple, introducing noise.
- The circuits are designed to capacitively couple at high frequencies.
adjective
British English
- The capacitive coupling effect was significant.
- We observed a capacitive coupling mechanism.
American English
- The capacitive-coupling path was identified. (hyphenated attributive)
- A strong capacitive coupling phenomenon disrupted the sensor.
Usage
Meaning in Context
Business
Almost never used, except possibly in highly technical procurement or R&D discussions within electronics manufacturing.
Academic
Common in textbooks, papers, and lectures in electrical engineering, physics, and electronics courses.
Everyday
Virtually never used in everyday conversation.
Technical
The primary domain. Used in circuit design, electromagnetic compatibility (EMC) testing, PCB layout, and troubleshooting interference issues.
Vocabulary
Synonyms of “capacitive coupling”
Strong
Neutral
Weak
Vocabulary
Antonyms of “capacitive coupling”
Watch out
Common Mistakes When Using “capacitive coupling”
- Mispronouncing 'capacitive' as /kəˌpeɪ.sɪ.tɪv/.
- Confusing 'capacitive coupling' with 'inductive coupling' (which uses magnetic fields).
- Using it in a non-technical context where it would not be understood.
FAQ
Frequently Asked Questions
No. While often a source of unwanted interference (crosstalk), it is deliberately used in circuits to pass alternating current (AC) signals while blocking direct current (DC), such as in audio equipment or radio frequency circuits.
Capacitive coupling transfers energy via an electric field, while inductive coupling transfers energy via a magnetic field. They are the two fundamental types of electromagnetic coupling.
By increasing physical distance, using shielding (e.g., a grounded conductor), placing a ground plane between conductors, or twisting wires together (to cancel fields).
In technical jargon, it is strictly electrical. However, one might creatively use it metaphorically to describe an indirect, non-physical influence or connection, though this is very rare and not standard.
An electrical phenomenon where energy is transferred between circuits or components through an electric field, without a direct conductive connection.
Capacitive coupling is usually technical in register.
Capacitive coupling: in British English it is pronounced /kəˌpæs.ɪ.tɪv ˈkʌp.lɪŋ/, and in American English it is pronounced /kəˌpæs.ə.t̬ɪv ˈkʌp.lɪŋ/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of two people not touching but feeling a static shock from the same carpet—energy transfers through the electric field, not by direct touch. That's capacitive coupling.
Conceptual Metaphor
A WIRELESS ENERGY TRANSFER (like a non-contact charger) or an UNSPOKEN CONNECTION (like subtle, unstated influence between people).
Practice
Quiz
What is the primary physical mediator of capacitive coupling?