頁籤選單縮合
題名 | Theoretical Investigation of SAW Propagating on KNbo[feb0]/MgO Layered Structure=在鈮酸鉀薄膜/氧化鎂基板兩層結構表面聲波傳播的理論探討 |
---|---|
作者 | 吳慕鄉; 施文欽; | 書刊名 | 大同學報 |
卷期 | 26 1996.11[民85.11] |
頁次 | 頁261-264+418 |
分類號 | 448.551 |
關鍵詞 | 鈮酸鉀薄膜; 氧化鎂基板; 表面聲波傳播; |
語文 | 英文(English) |
中文摘要 | 在本研究中,我們對氧化鎂基板上之鈮酸鉀薄膜的表面聲波特性作理論研究。當鈮酸鉀薄膜的厚度增加時,相速度會隨著增加。機電耦合係數值可高達10%。倘若選擇耦合係數值為1%作為比較的參考,我們發現當交指狀換能器座落於鈮酸鉀薄膜上方時的電極結構是個比較好的選擇。研究結果有助於整合光學元件與表面聲波元件於同一片氧化鎂基板。 |
英文摘要 | The surface acoustic wave (SAW) properties of the KNbO�� film on MgO substrate are theoretically studied. Phase velocity decreases when the hK value of the KNbO�� film increases from 0 to 4. The value of the coupling coefficients can be as high as 10%. The KnbO�� (001)/MgO(001)[100] layered structure with the interdigital transducer (IDT) located on top of the KNbO�� film is a better choice if we select a coupling coefficient of 1% as a reference for comparison. The results could be useful to integrate optical devices and SAW devices on the same MgO substrate. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。