LC-notch-filters less sensitive to LTCC process tolerances

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Abstract

A new design procedure for low temperature coflred ceramics integrated single inductance-capacitance (LC)-notch filters is described that minimizes the shift in resonance frequency due to process variations such as layer thickness and line-width variations. 25-μm thin layers of dielectric constant 7.8 and 17.9 were used for the experimental verification and further miniaturization of the layout. A two to five-fold reduction of the resonance frequency uncertainty was achieved compared to conventional designs. Application of these new single LC-notch filters in Bluetooth radio frequency-front-end modules is discussed.

Original languageEnglish
Article number1661643
Pages (from-to)458-460
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume16
Issue number8
DOIs
Publication statusPublished - 1 Aug 2006
Externally publishedYes

Keywords

  • Circuit modeling
  • Circuit optimization
  • Sensitivity
  • Transmission line resonator

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