Research any topic before you write.
Find related topics. | Discover entities. | See connections. | Build a topical map.
Edwin Howard Armstrong (December 18, 1890 – February 1, 1954) was an American radio-frequency engineer and inventor who developed FM (frequency modulation) radio and the superheterodyne receiver system.
Works & Legacy
Explore the main themes, entities and connections around Edwin Howard Armstrong. Start with the topic map, then use the sections below for research and deeper semantic analysis.
Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Browse the full topic structure. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
See the strongest relationship patterns around the current topic before diving into the raw triples.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
armstrong patent radio fm system frequency rca armstrong's new columbia superheterodyne would signaling band university marion used patents york circuit
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Edwin Howard Armstrong | Academic advisors | Michael Pupin | 1.00 | infobox |
| Edwin Howard Armstrong | Allegiance | United States | 1.00 | infobox |
| Edwin Howard Armstrong | Alma mater | Columbia University | 1.00 | infobox |
| Edwin Howard Armstrong | Awards | Legion of Honour (1919) | 1.00 | infobox |
| Edwin Howard Armstrong | Born | (1890-12-18)December 18, 1890 New York City, US | 1.00 | infobox |
| Edwin Howard Armstrong | Branch | United States Army | 1.00 | infobox |
| Edwin Howard Armstrong | Died | February 1, 1954(1954-02-01) (aged 63) New York City, US | 1.00 | infobox |
| Edwin Howard Armstrong | Fields | Radio-frequency engineering | 1.00 | infobox |
| Edwin Howard Armstrong | Known for | Armstrong oscillator | 1.00 | infobox |
| Edwin Howard Armstrong | Known for | Armstrong phase modulator | 1.00 | infobox |
| Edwin Howard Armstrong | Known for | Superheterodyne receiver | 1.00 | infobox |
| Edwin Howard Armstrong | Known for | Regenerative circuit | 1.00 | infobox |
| Edwin Howard Armstrong | Known for | FM radio | 1.00 | infobox |
| Edwin Howard Armstrong | Rank | Major | 1.00 | infobox |
| Edwin Howard Armstrong | Service years | 1917–1919 | 1.00 | infobox |
| Edwin Howard Armstrong | Spouse | .mw-parser-output .marriage-line-margin2px{line-height:0;margin-bottom:-2px}.mw-parser-output .marriage-line-margin3px{line-height:0;margin-bottom:-3px}.mw-parser-output .marria… | 1.00 | infobox |
| Edwin Howard Armstrong | Unit | US Army Signal Corps | 1.00 | infobox |
| Edwin Howard Armstrong | Wars | World War I | 1.00 | infobox |
| Edwin Howard Armstrong | Workplaces | Columbia University | 1.00 | infobox |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.