end-coupled microstrip slow-wave resonator filtlers using hing-permittivity ceramic substrate

Cheng-Liang Huang, Shih Sheng Liu

Research output: Contribution to journalArticlepeer-review


The miniaturization of end-coupled microstrip slow-wave resonator filters using two high-permittivity ceramic substrates (with respective dielectric constants of 9.7 and 25.45) were investigated. The designed end-coupled structures were simulated using an IE3D simulator. The responses of the fabricated filters using Al2O3r = 9.7, tan δ = 0.000036) and newly developed 0.85MgTiO3-0.15Ca 0.6La0.8/3TiO3r = 25.45, tan δ = 0.00002) ceramic substrates were designed to have a center frequency of 1.8 GHz. The proposed filter showed not only a tremendous reduction in the insertion loss but also demonstrates a marvelous cut in its size.

Original languageEnglish
Pages (from-to)1613-1615
Number of pages3
JournalMicrowave and Optical Technology Letters
Issue number6
Publication statusPublished - 2009 Jun 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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