Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Characterization of SAW filters with different IDT structures

다양한 IDT 구조에 따른 SAW 필터의 특성 연구

  • Shin, Yang-Ho (Dept. of Electrical Engineering, Hanyang University) ;
  • Kim, Kwi-Hyun (Dept. of Electrical Engineering, Hanyang University) ;
  • Lee, Jin-Bock (Dept. of Electrical Engineering, Hanyang University) ;
  • Park, Jin-Seok (Dept. of Electrical Engineering, Hanyang University)
  • Published : 1999.07.19
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Abstract

Effect of IDT structures on the frequency response of the SAW device are investigated. Various types of IDTs, such as MSC(multistrip-coupler), double split, reflector, and ground line. are designed and patterned on the widely used Y-Z cut LN$(LiNbO_3)$ substrate. Center frequencies, band widths, and insertion losses are measured and compared. Invalidity of the conventional model based on the impulse response model is also discussed.

Keywords