• DocumentCode
    2139490
  • Title

    Recursive Filters Employing Transmission Type Phase Shifters and Novel Self-Switched Time Shifters for Frequency Tuning

  • Author

    Danestig, Magnus ; Ouacha, Aziz ; Tsoen, Carlos Lie Kien ; Tieman, Theo ; Rudner, Staffan

  • Author_Institution
    FOA Defence Research Establishment, P.O. Box 1165, S-581 11, Linköping, Sweden
  • Volume
    1
  • fYear
    1998
  • fDate
    Oct. 1998
  • Firstpage
    352
  • Lastpage
    357
  • Abstract
    In this paper we discuss tuning properties of recursive active filters. Two different types of tuneable microwave monolithic integrated (MMIC) filters working at X-band have been implemented for evaluation. The first filter type uses an analog transmission-type phase shifter as tuning element resulting in a tuneable bandwidth of 9% and an instantaneous filter bandwidth of only 1.2%. The second filter which instead uses a novel small size three-bit self-switched time shifter has a tuneable bandwidth as large as 16% and an instantaneous bandwidth of 5%.
  • Keywords
    Active filters; Bandwidth; Circuit optimization; Delay effects; Frequency; MMICs; Microwave filters; Phase shifters; Tunable circuits and devices; Tuning;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Microwave Conference, 1998. 28th European
  • Conference_Location
    Amsterdam, Netherlands
  • Type

    conf

  • DOI
    10.1109/EUMA.1998.338013
  • Filename
    4139100
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2139490