BSST high-permittivity coaxial-type direct-coupling microwave ceramic bandpass filters

Cheng Liang Huang, Yau Chung Chen

Research output: Contribution to journalArticlepeer-review


Dielectric resonators with a high dielectric constant (70-90) are commonly applied in UHF cellular telephone and L-band communication systems. With the advantages of compact size and ruggedness, dielectric resonators can be constructed as high-performance bandpass filters through direct coupling. Coaxial-type direct-coupling microwave ceramic bandpass filters are investigated in this paper. The filters exhibit excellent features of low dissipation and relatively good temperature stability due to their high-Q dielectric material and low temperature coefficient of resonant frequency (τf). This paper describes the performance of a high-permittivity ceramic coaxial-type direct-coupling microwave bandpass filter and the effect of aperture location on its response.

Original languageEnglish
Pages (from-to)258-260
Number of pages3
JournalMicrowave and Optical Technology Letters
Issue number4
Publication statusPublished - 2000 Aug

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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