• DocumentCode
    107039
  • Title

    Armstrong and the Superheterodyne: A Historical Look at the Mixer

  • Author

    Maas, S.

  • Author_Institution
    AWR Corp., Long Beach, CA, USA
  • Volume
    14
  • Issue
    6
  • fYear
    2013
  • fDate
    Sept.-Oct. 2013
  • Firstpage
    34
  • Lastpage
    39
  • Abstract
    It is difficult to pinpoint the invention of the mixer. Although the superheterodyne receiver was invented by Edwin Howard Armstrong around 1918, the use of heterodyne techniques began much earlier, and a crude modulator, arguably a sort of mixer, existed in 1906. Thus, we are currently at a soft 100-year anniversary of the mixer, so it seems like a good time to look back at that technology to see how it arose. It´s a good story.
  • Keywords
    mixers (circuits); superheterodyne receivers; Edwin Howard Armstrong; crude modulator; mixer; superheterodyne receiver; Detectors; Electron tubes; History; Mixers; Oscillators; Radio transmitters; Receivers;
  • fLanguage
    English
  • Journal_Title
    Microwave Magazine, IEEE
  • Publisher
    ieee
  • ISSN
    1527-3342
  • Type

    jour

  • DOI
    10.1109/MMM.2013.2269858
  • Filename
    6588426
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=107039