Miniature microwave notch filters and comparators based on transmission lines loaded with stepped impedance resonators (SIRs)

Lijuan Su, Jordi Naqui, Javier Mata-Contreras, Ferran Martín

Research output: Contribution to journalReview articleResearchpeer-review

2 Citations (Scopus)

Abstract

In this paper, different configurations of transmission lines loaded with stepped impedance resonators (SIRs) are reviewed. This includes microstrip lines loaded with pairs of SIRs, and coplanar waveguides (CPW) loaded with multi-section SIRs. Due to the high electric coupling between the line and the resonant elements, the structures are electrically small, i.e., dimensions are small as compared to the wavelength at the fundamental resonance. The circuit models describing these structures are discussed and validated, and the potential applications as notch filters and comparators are highlighted.
Original languageEnglish
Pages (from-to)1-10
JournalMicromachines
Volume7
Issue number1
DOIs
Publication statusPublished - 1 Jan 2016

Keywords

  • Coplanar waveguides
  • Microstrip lines
  • Microwave comparator
  • Microwave notch filter
  • Stepped impedance resonator (SIR)

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