【摘 要】
：
The crystals of quartz,lithium,and piezoelectric ceramics have a piezoelectric effect as their major characteristic.The surface acoustic wave filter (SAWF) was
【机 构】
：
College of Information Science and Technology,College of Electronic and Electrical Engineering,Colle
论文部分内容阅读
The crystals of quartz,lithium,and piezoelectric ceramics have a piezoelectric effect as their major characteristic.The surface acoustic wave filter (SAWF) was designed by using this property.However,the experimental cost of the fabrication of SAWF is higher than that of mechanical filter or LC filter.Through the RLC ( resistor,inductor and capacitor) network equivalent circuit and the interdigital transducer (IDT) equivalent circuit model,the electromotive force,the mechanical impedance of piezoelectric plate,and the wave number of Mason circuit model were researched.The equivalent circuit can be used to reduce product development costs and shorten the development cycle.Comparing simulation result by Pspice software with the theory of SAWF,the simulated waveform is similar to theory measurement,and the equivalent circuit model is verified.
其他文献
The buyer-supplier relationship plays a great role in most economic systems.The buying firm usually tries to find a new supplier who provides products with sati
Many performance indices for parallel mechanism are put forward in the phase of dimensional synthesis,except for identifiability index,which determines the diff
Finite element models were established to analyze the influence of soft filler on stress concentration for a rectangular plate with an elliptic hole in the cent
The high-tech industry is highlighted for advanced techniques,substantial capital investment,and smart talents.But their effective combination can not be achiev
Spatial straight line mechanisms are a class of spatial mechanisms whose end-effectors generate the trajectory with the form of exact straight lines,which have
针对仿真软件评价优选问题,提出一种基于公理设计理论的仿真软件评价方法。以公理设计理论为指导建立仿真软件评价模型,通过信息公理以信息量大小为测度来度量仿真软件产品的
Neutron Flux Monitor,a key diagnostic system in International Thermonuclear Experimental Reactor,may provide for reading a series of important parameters in fus
By combining the AdaBoost modular locality preserving projection (AMLPP) algorithm and the locally linear regression (LLR) algorithm,a novel pose-invariant algo
To further investigate the microstructure characteristic and solidification mechanism,so as to provide knowledge for the microstructure control of a NiTi-Al bas
Coupled-plate structures are widely used in the practical engineering such as aeronautical,civil and naval engineering etc.Limited works can be found on the vib