| 倾斜反射阵列相关器技术研究 |
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| 引用本文： | 张龙,周莉,陈小兵,于新晓. 倾斜反射阵列相关器技术研究[J]. 压电与声光, 2005, 27(1): 1-3,13 |
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| 作者姓名： | 张龙 周莉 陈小兵 于新晓 |
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| 作者单位： | 四川压电与声光技术研究所,重庆,400060 |
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| 摘 要： | 介绍了倾斜反射阵列相关器(SRAC)设计技术，并采用该技术在YZ-LiNbO3基片上制作了中心频率60MHz，带宽35MHz，色散时间40ps的声表面波沟槽反射栅色散延迟线，实现了60％的相对带宽，同时采用了幅度及相位补偿技术，改善了器件的幅频及相频特性，实现了主副瓣比35dB。
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| 关 键 词： | 声表面波 倾斜反射阵列相关器 相位补偿 主副瓣比 |
| 文章编号： | 1004-2474(2005)01-0001-03 |
Study on the Slanted Reflective Array Correlator |
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| ZHANG Long,ZHOU Li,CHENG Xiao-Bin,YU Xin-xiao. Study on the Slanted Reflective Array Correlator[J]. Piezoelectrics & Acoustooptics, 2005, 27(1): 1-3,13 |
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| Authors: | ZHANG Long ZHOU Li CHENG Xiao-Bin YU Xin-xiao |
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| Abstract: | The design technology of slanted reflective array correlator is introduced in this paper. A SAW disperssive delay line based on this technology is realized on YZ-LiNbO_3 substrate with center frequency of 60 MHz and bandwidth of 35 MHz. The disperssive time and the relative bandwidth of the device are 40us and 60% respectively. Both amplitude and phase compensation technology is used to improve the amplitude-frequency and phase-frequency properties of the device. The main-side lobe ratio is about 35 dB. |
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| Keywords: | SAW slanted reflective array correlator phase compensation main-side lobe ratio |
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