Selected Article

Title

體聲波共振器與濾波器之研究

The Study of Bulk Acoustic Wave Resonators and Filters

Creator

蔣源峰

Description

[[abstract]]本論文以梅森等效電路(Mason Equivalent Circuit)為出發點,探討薄膜體聲波共振器(Thin Film Bulk Acoustic Wave Resonator, FBAR)、固嵌式共振器(Solidly Mounted Resonator, SMR)、層疊晶體濾波器(Stacked Crystal Filter, SCF) 以及耦合共振濾波器(Coupled Resonator Filter, CRF)的工作原理,並且利用傳輸矩陣法(Transmission Matrix Method)計算元件之散射特性,更進一步的模擬以及評估各種材料尺寸參數對元件頻率響應的影響。此外,針對反射器的應用以及反射器體聲波的頻率響應也有做更進一步的分析。模擬的結果顯示,經過適切的設計,體聲波元件可以用於設計符合無線通訊應用的共振器與濾波器。

[[abstract]]In this thesis the frequency response of Thin Film Bulk Acoustic Wave Resonator (FBAR), Solidly Mounted Resonator (SMR), Stacked Crystal Filter (SCF), and Coupled Resonator Filter (CRF) are investigated by using the transmission matrix method. The effects of material properties on the scattering characteristic are also discussed. Besides, the applications of reflectors and the frequency response of bulk wave devices with reflector layers will also be studied. Simulation results show that with a proper design bulk acoustic wave devices can be employed to design resonators or filters for wireless communications applications.

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