Planar compact ellipticfunction low-pass filter using high-permittivity ceramics substrate

Yuan Bin Chen, Cheng-Liang Huang, Ching Wen Lo

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


A component elliptic-function low-pass filter using microstrip stepped-impedance hairpin resonators and their equivalent-circuit models is developed. The prototype filters are synthesized from the equivalent-circuit model using available element value tables. To optimize the performance of the filters, electro-magnetic simulation is used to tune the dimensions of the prototype filters. The filter using multiple cascaded hairpin resonators provides a very sharp cutoff-frequency response with low insertion loss. The full-wave simulator IE3D is used to design the elliptic-function low-pass filter. The response of the fabricated filter using Al2O3r = 9.7, Q × f = 350,000 GHz) and La(Mg 1/2Ti1/2)O3r = 28.6 Q × f = 60,000 GHz).

Original languageEnglish
Pages (from-to)1393-1398
Number of pages6
JournalMicrowave and Optical Technology Letters
Issue number7
Publication statusPublished - 2006 Jul 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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