• DocumentCode
    3568734
  • Title

    Filtering adjacent channel blockers using signal-transfer-function of continuous-time ΣΔ modulators

  • Author

    Beilleau, N. ; Aboushady, H. ; Lou?«rat, M.M.

  • Author_Institution
    Paris VI Univ., France
  • Volume
    1
  • fYear
    2004
  • Abstract
    In this paper, we show that the signal transfer function of continuous-time ΣΔ modulators can be used to remove the baseband analog filters in radio receivers. General expressions for the signal transfer function of continuous-time ΣΔ modulators are derived. Comparisons between the frequency response of feedforward and feedback architectures of discrete-time and continuous-time ΣΔ modulators are established. Filtering of GSM adjacent channel blockers using a 5th order continuous-time ΣΔ is given as an example.
  • Keywords
    cellular radio; filtering theory; frequency response; radio receivers; sigma-delta modulation; transfer functions; GSM; adjacent channel blocker filtering; continuous time sigma-delta modulators; discrete time modulators; feedback architecture; feedforward architecture; frequency response; radio receivers; signal transfer function; Baseband; Delta modulation; Equations; Feedback loop; Filtering; Filters; GSM; Genetic expression; Quantization; Transfer functions;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Circuits and Systems, 2004. MWSCAS '04. The 2004 47th Midwest Symposium on
  • Print_ISBN
    0-7803-8346-X
  • Type

    conf

  • DOI
    10.1109/MWSCAS.2004.1353994
  • Filename
    1353994
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3568734