Amplitude Modulation (AM)

  • Saleh FaruqueEmail author
Part of the SpringerBriefs in Electrical and Computer Engineering book series (BRIEFSELECTRIC)


In Amplitude Modulation (AM), the amplitude of the carrier changes in accordance with the input analog signal, while the frequency of the carrier remains the same. The modulated carrier contains several spectral components, requiring frequency domain analysis. In an effort to examine this, this chapter presents the following topics:
  • Amplitude Modulation (AM) and AM spectrum

  • Double sideband-suppressed carrier (DSBSC) and DSBSC spectrum

  • Single sideband (SSB) carrier and SSB spectrum

These materials have been augmented by diagrams and associated waveforms to make them easier for readers to grasp.


Amplitude Modulation Carrier Frequency Spectral Component Sine Wave Spectral Response 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    Marconi G (1897) Improvements in transmitting electrical impulses and signals, and in apparatus therefor. British patent No. 12,039. Date of Application 2 June 1896; Complete Specification Left, 2 Mar 1897; Accepted, 2 July 1897 (later claimed by Oliver Lodge to contain his own ideas which he failed to patent)Google Scholar
  2. 2.
    Marconi G (1900) Improvements in apparatus for wireless telegraphy. British patent No. 7,777. Date of Application 26 Apr 1900; Complete Specification Left, 25 Feb 1901; Accepted, 13 Apr 1901Google Scholar
  3. 3.
    Leon W, Couch II (2001) Digital and analog communication systems, 7th edn. Prentice-Hall Inc, Englewood Cliffs. ISBN 0-13-142492-0Google Scholar
  4. 4.
    Godse AP, Bakshi UA (2009) Communication engineering. Technical Publications, p 36. ISBN 978-81-8431-089-4Google Scholar
  5. 5.
    Silver W (ed) (2011) Chapter 14 transceivers. The ARRL handbook for radio communications, 88th edn. American Radio Relay League. ISBN 978-0-87259-096-0Google Scholar

Copyright information

© The Author(s) 2017

Authors and Affiliations

  1. 1.Department of Electrical EngineeringUniversity of North DakotaGrand ForksUSA

Personalised recommendations