金属狭缝中SAW传感器信号传输的设计与优化  

The Design and Optimization of Signal Transmission for SAW Sensor in the Metallicslit

作　　者：褚博文 丁杰雄[1] 关利超 边志远[1] 李海宁[1] 

机构地区：[1]电子科技大学机械电子工程学院,四川成都611731

出　　处：《压电与声光》2015年第2期205-208,212,共5页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(11076007)

摘　　要：声表面波(SAW)器件可实现无源无线传感测量,为金属狭缝极端环境下接触应力的测量提供了解决思路。该文主要研究了狭缝中SAW器件的信号传输问题,选用微带线作为信号传输线。分析了金属狭缝对微带线传输性能的影响,设计出信号传输线及匹配电路。最后把设计出的微带线与谐振器键合连接,并进行实验测试。通过对金属狭缝中信号传输问题的研究,验证了狭缝等极端环境实施应力测量的可行性。Surface acoustic wave（SAW）device can be used for wireless sensing measurement without power supply,so it′s important to master the force condition in the metal slit intuitively by measuring contact stress with SAW device in metal slit.SAW signal transmission in the metal slit has been investigated by using the mcirostrip line as the transmission line in this work.The effect of the metallic slit on the transmission performance of the mcirostrip line has also been analyzed.The signal transmission line and its matching circuit have been designed.The wire bonding wire is adopted to connect the resonator and the microstrip line and tested through experiment.Through research on the problem of signal transmission in metal slit,the feasibility of the stress measurement in extreme environment such as metallic slit has been verified.

关 键 词：金属狭缝 SAW 微带线 阻抗匹配 键合连接 

分 类 号：TN811[电子电信—信息与通信工程] TN65