Multiple Order Dual-Band Active Ring Filters with Composite Right/Left Handed Cells Articles uri icon

publication date

  • June 2010

start page

  • 201

end page

  • 219


  • 104

International Standard Serial Number (ISSN)

  • 1043-626X


  • In this paper, a novel dual-band active filter topology is presented. The non-linear phase response of a composite right/left-handed cell is used to achieve the desired dual-band performance. Additionally, the
    proposed structure based on coupled ring resonators yields a very
    compact solution in which high-order implementations can be easily
    obtained by cascading multiple rings. The theoretical principles of this
    type of filters are analyzed in detail. Finally, three prototypes based
    on first-, second- and third-order structures validate the feasibility
    of this type of filters. Good agreement between simulations and
    measurements has been achieved.