BST Varactors for Tunable RF Circuits

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Abstract

This paper presents VTT's ferroelectric BST- varactor technology applicable to tunable components and circuits. As an example, a tunable stub resonator was designed, fabricated and characterized. A 40% capacitance tuning range results into a 25% shift in stub resonator frequency. A tuning voltage from zero DC bias to 40V results to a center frequency shift from 4.5 to 5.9 GHz.
Original languageEnglish
Title of host publicationProceedigns of the 10th International Symposium on RF MEMS and RF Microsystems, MEMSWAVE 2009
Pages19-22
Publication statusPublished - 2009
MoE publication typeA4 Article in a conference publication
Event10th International Symposium on RF MEMS and RF Microsystems, MEMSWAVE 2009 - Trento, Italy
Duration: 6 Jul 20098 Jul 2009

Conference

Conference10th International Symposium on RF MEMS and RF Microsystems, MEMSWAVE 2009
Abbreviated titleMEMSWAVE 2009
CountryItaly
CityTrento
Period6/07/098/07/09

Keywords

  • ferroelectric
  • varactor
  • stub resonator
  • tunable RF circuits

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