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Butterworth filter

type of signal processing filter designed to have a frequency response as flat as possible in the passband
Thing general Q1018162
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Butterworth filter

Summary

Butterworth filter ranks in the top 2% of general entities by monthly Wikipedia readership (1,273 views/month).[1]

Key Facts

  • Butterworth filter is credited with the discovery of Stephen Butterworth[2].
  • Stephen Butterworth is named after Butterworth filter[3].
  • Butterworth filter is a type of electronic filter[4].

Body

Definition and Type

Butterworth filter is a type of electronic filter[4].

Origins

Stephen Butterworth is named after Butterworth filter[3].

Why It Matters

Butterworth filter ranks in the top 2% of general entities by monthly Wikipedia readership (1,273 views/month).[1] It has Wikipedia articles in 18 language editions, a strong signal of global cultural recognition.[5] It is known by 24 alternative names across languages and contexts.[6]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [5] ↑ . Wikidata sitelinks. wikidata.org.
  3. [6] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Butterworth filter. Retrieved April 11, 2026, from https://4ort.xyz/entity/butterworth-filter
MLA “Butterworth filter.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Apr. 2026, https://4ort.xyz/entity/butterworth-filter.
BibTeX @misc{4ortxyz_butterworth-filter_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Butterworth filter}}, year = {2026}, url = {https://4ort.xyz/entity/butterworth-filter}, note = {Accessed: 2026-04-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Butterworth filter — https://4ort.xyz/entity/butterworth-filter (retrieved 2026-04-11)

Canonical URL: https://4ort.xyz/entity/butterworth-filter · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 6d ago · VGMaintenanceBot bot · 2026-09-08 view diff on Wikidata ↗
    Subclass of → electronic filter
    Discoverer or inventor → Stephen Butterworth
    Named after → Stephen Butterworth
    Aliases → —
    + 2 other properties edited (see Wikidata diff for full list)
    "/* wbsetqualifier-add:1| */ [[Property:P9675]]: 11521, Add qualifier to Rosetta Code page ID `Apply_a_digital_filter_(direct_form_II_transposed)`"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.