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本文就声表面波(SAW)和浅体声波(SBAW)器件的各种应用予以评述。涉及的声表面波器件,包括各种延迟线和滤波器,选定的工作频率范围,约自10MHz到1GHz;典型的对象为单晶压电材料和层状结构、各种谐振器和低损耗滤波器、梳状滤波器和多路转换器、天线双工器、谐波器件,脉冲压缩用的Chirpt滤波器、固定的和可编程的各种横向滤波器编码技术、巴克码和双相编码技术、自适应滤波器、雷达中应用的各种声和声电卷积器与相关器、扩展频谱通信、分组无线电通信技术、布喇格(Bragg)调制与频谱分析用声光处理器、雷达、声呐及压缩接收机应用的各种实时傅里叶变换和倒谱处理器、微波数字无线电应用的奈奎斯特(Nyquist)滤波器、光纤通信应用的时钟恢复滤波器、固定的、可调的与多模的各种振荡器和频率合成器、砷化镓上作信号处理用的声电荷传输(ACT)器件及其它声表面波器件、各种声表面波传感器和扫描声显微技术。浅体声波(SBAW)器件的应用包括千兆赫延迟线,应用能陷栅的表面横渡谐振器和改进了性能的振荡器。
This article reviews various applications of surface acoustic wave (SAW) and shallow body acoustic wave (SBAW) devices. The SAW devices involved include various delay lines and filters with selected operating frequency range of about 10 MHz to 1 GHz; typical objects are single crystal piezoelectric materials and layered structures, various resonators and low loss Filters, comb filters and multiplexers, antenna duplexers, harmonic devices, Chirp t filters for pulse compression, fixed and programmable transversal filter encoding techniques, Barker codes and double Phase encoding techniques, adaptive filters, various acoustic and voice electronic convolvers and correlators used in radar, spread spectrum communications, packet radios, Bragg modulation and spectrum analysis with acousto-optic processors , Various real-time Fourier transform and cepstral processors for radar, sonar and compression receiver applications, Nyquist filters for microwave digital radio applications, clock recovery filters for optical fiber communications applications, fixed, Adjustable and multimode Oscillators and Frequency Synthesizers, Acoustic Charge Transfer (ACT) devices for signal processing with gallium arsenide and other surface acoustic wave devices, various surface acoustic wave sensors and scanning acoustic microscopy technology. Applications for shallow body acoustic wave (SBAW) devices include gigahertz delay lines, trapping of surface trapping resonators with trapped features and improved performance oscillators.