• DocumentCode
    1464119
  • Title

    Ladder decompositions for wideband SI filter applications

  • Author

    Ng, A.E.J. ; Sewell, J.I.

  • Author_Institution
    Dept. of Electron. & Electr. Eng., Glasgow Univ., UK
  • Volume
    145
  • Issue
    5
  • fYear
    1998
  • fDate
    10/1/1998 12:00:00 AM
  • Firstpage
    306
  • Lastpage
    313
  • Abstract
    Methods for designing switched-current ladder filters for wideband applications are presented. By performing UL-LU and LU-UL decompositions on the z-domain matrix description of a bilinear transformed passive ladder, filter structures are derived which preserve low passband sensitivity even for large relative bandwidths. Derivation procedures are outlined and illustrated by the example of a 5th order lowpass UL-LU filter and a 10th order LU-UL bandpass. The switched-current filters are realised using Euler-type integrators based on S3I cells. A comparison of the properties of different structures demonstrate the advantages of the UL-LU and LU-UL methods
  • Keywords
    band-pass filters; integrating circuits; ladder filters; low-pass filters; matrix decomposition; passive filters; switched current circuits; Euler integrator; LU-UL decomposition; S3I cell; UL-LU decomposition; bandpass filter; bilinear transform; high order design; lowpass filter; passive filter; wideband switched current ladder filter; z-domain matrix;
  • fLanguage
    English
  • Journal_Title
    Circuits, Devices and Systems, IEE Proceedings -
  • Publisher
    iet
  • ISSN
    1350-2409
  • Type

    jour

  • DOI
    10.1049/ip-cds:19982273
  • Filename
    739672
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1464119