Frequency-Tunable Acousto-Electronic Devices

The article describes an original design principle of a frequency-tunable acousto-electronic device based on Rayleigh surface acoustic waves (SAW). Basic information regarding the physical, structural, and technological features of surface acoustic wave devices underlying their construction principle is briefly present-ed. The paper demonstrates the broad application possibilities of acousto-electronic devices in various fields of science and engineering, primarily in instrument making, achieved due to high-performance parameters, stability, low weight and dimensions, high manufacturability, and ease of integration with microprocessor technology. The latter is crucial from the perspective of device intellectualization, which is particularly important for their implementation in high-level information technology systems. Recently, active acousto-electronics has seen significant growth, with considerable attention focused on frequency-tunable devices. This interest is driven, among other factors, by the need for rapid system reconfiguration in unmanned aerial vehicles (UAVs). The article examines several developments of SAW acousto-electronic devices within this category. Research results for an original frequency-tunable SAW device solution are presented and com-pared with existing analogs. A wide-range frequency tuning exceeding 10 % was achieved, which is unprece-dented compared to known solutions. Data on effective structural and technological design solutions of the device are provided. Opportunities for practical application in electronic systems, including special-purpose applications, are outlined.