New CPW low-pass filter based on a slow wave structure

F. Martin, F. Falcone, J. Bonache, T. Lopetegi, M. A.G. Laso, M. Sorolla

    Research output: Contribution to journalArticleResearchpeer-review

    18 Citations (Scopus)

    Abstract

    A new periodic loaded coplanar waveguide (CPW) low-pass filter with very sharp cutoff has been designed and fabricated. The device consists of a CPW structure with T-shaped periodic patterns on both the central strip and ground planes. With such a design, capacitive coupling is added between the signal strip and ground planes at periodic positions, resulting in a filtering action and slow-wave effect. In addition to a sharp cutoff, the device exhibits very low insertion loss in the pass band, wide rejection bandwidth, and simple design and fabrication.
    Original languageEnglish
    Pages (from-to)190-193
    JournalMicrowave and Optical Technology Letters
    Volume38
    DOIs
    Publication statusPublished - 5 Aug 2003

    Keywords

    • Coplanar waveguide technology
    • Microwave filters
    • Slow-wave structures

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