| Theoretical and experimental study on strip reflection coefficient of different crystal symmetry class |
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| 作者姓名： | XU Fangqian HE Shitang |
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| 作者单位： | [1]Institute of Acoustics, The Chinese Academy of Sciences Beijing 100080 [2]School of Engineering, Ningbo University Ningbo 315211 |
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| 基金项目： | This work was supported by the National Nature Science Foundation of China (No. 10374100). |
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| 摘 要： | The closed-form expressions on strip reflection coefficients of tetragonal 4/mmm, hexagonal 6/mm and trigonal 3m crystal, etc, were derived, which are different from that of cubic m3m crystal published. The reflection coefficients of short-circuited Al grating and groove grating on 112°rotated X-cut Y-propagation LiTaO3 are then given. The reflection property of a short-circuited Al -recessed groove grating on 112°LiTaO3 has been experimentally studied and the condition without internal reflection was achieved. It concludes that the structure of single finger without internal reflection can be realized by the short-circuited Al -recessed groove grating on 112°LiTaO3 and thereafter a pass-band filter with central frequency at 255 MHz, bandwidth about 10 MHz, pass-band ripples less than 0.4 dB was yielded.
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| 关 键 词： | 实验学习 分带反射系数 晶体对称 中心频率 |
| 收稿时间： | 2004-12-06 |
| 修稿时间： | 2004-12-062005-03-14 |
Theoretical and experimental study on strip reflection coefficient of different crystal symmetry class |
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| Authors: | XU;Fangqian;HE;Shitang |
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