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Touchstone file

A Touchstone file was originally a proprietary file format for the eponymous frequency-domain linear circuit simulator from EEsof, launched in 1984 and acquired by HP. The simulator has been called HP/EEsof, then its engine has been successively included in the jOmega and ADS software suites and it is now owned by Keysight.

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Standards & Overview

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Research this topic

Explore the main themes, entities and connections around Touchstone file. 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.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Developed by
IBIS Open Forum, Agilent Technologies Inc
Initial release
1984; 42 years ago (1984)
Latest release
2.1 Jan 2024; 2 years ago (Jan 2024)
Standard
Touchstone
Type of format
Document file format

Topics to explore

A structured outline of related entities, concepts and subtopics. Open any item to build a new map centered on it.

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

Overview

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

Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.

Touchstone file

Nodes15
Edges14
Triples9
Avg. degree1.87
Density0.133333
Components1

How this topic connects Entity context

Quick relationship hints grouped by predicate. Useful for spotting recurring semantic connections around the current entity.

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

Touchstone file

Top relations

Developed by · 1
Touchstone file → IBIS Open Forum, Agilent Technologies Inc
Filename extension · 1
Touchstone file → .mw-parser-output .monospaced{font-family:monospace,monospace} .s1p, .s2p, .s3p, .s4p, .snp, .ts
Initial release · 1
Touchstone file → 1984; 42 years ago (1984)
Latest release · 1
Touchstone file → 2.1 Jan 2024; 2 years ago (Jan 2024)
Standard · 1
Touchstone file → Touchstone
Type of format · 1
Touchstone file → Document file format
Website · 1
Touchstone file → IBIS

Important terminology Word statistics

Frequent words and multi-word phrases across the lead, headings, infobox and body. Useful for terminology coverage.

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

Important terminology

file format ibis touchstone simulator network version open forum eesof s-parameters linear circuit hp superseded also later reference several 1984

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
Touchstone fileDeveloped byIBIS Open Forum, Agilent Technologies Inc1.00infobox
Touchstone fileFilename extension.mw-parser-output .monospaced{font-family:monospace,monospace} .s1p, .s2p, .s3p, .s4p, .snp, .ts1.00infobox
Touchstone fileInitial release1984; 42 years ago (1984)1.00infobox
Touchstone fileLatest release2.1 Jan 2024; 2 years ago (Jan 2024)1.00infobox
Touchstone fileStandardTouchstone1.00infobox
Touchstone fileType of formatDocument file format1.00infobox
Touchstone fileWebsiteIBIS1.00infobox
Y-parametersinstance ofother representations0.80text
Z-parameters can be recorded.It later became a de facto industry-standard file format not only for circuit simulators but also for measurement equipmentinstance ofother representations0.80text

Related concept clusters Concept neighborhoods

Clusters of nearby vocabulary surrounding the topic. Scan them for adjacent concepts and language you may have missed.

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

    Connections between topic areas Semantic bridges

    Bridge nodes connect otherwise separate parts of the map. Expand a row to inspect the topic groups on each side.

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

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