The study on the development of phase shifter of FBAR(Film Bulk Acoustic Reonator) Duplexer using photo lithograry

후막 리소그라피 공정을 이용한 FBAR Duplexer용 phase shifter 개발에 관한 연구

  • Yoo, Joshua (Korea Electronics Technology Institute) ;
  • Yoo, M.J. (Korea Electronics Technology Institute) ;
  • Kim, Erick (Korea Electronics Technology Institute) ;
  • Lee, W.S. (Korea Electronics Technology Institute) ;
  • Park, J.C. (Korea Electronics Technology Institute)
  • Published : 2003.07.10

Abstract

Nowadays, the study on the ceramic components and modules used in telecommunication system is being performed. Duplexer is the one of the most important components and has the role of dividing Rx and Tx signal. Duplexer including the FBAR is being done vigorously LTCC is used for package like SAW package, duplexer package. In our research, LTCC material is used for FBAR duplexer package and photo-lithography for the fine line phase shifter. The good characteristics, low loss and good isolation, of duplexer is obtained by the fine line phase shifter having high characteristic impedance of stripline.

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