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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Design and properties of STW asynchronous resonators on quartz
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Design and properties of STW asynchronous resonators on quartz

机译：石英STW异步谐振器的设计和性能

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摘要

In a surface transverse wave (STW) asynchronous resonator, grating phase shifters are placed between interdigital transducers and reflectors to obtain the incident and reflected waves in phase, and the resonance frequency is located near the center frequency of the reflectors. In this paper, the scattering matrix method is used for design of such resonators with one dominant longitudinal mode. At a frequency of about 509.5 MHz, insertion loss, and loaded and unloaded quality factors of about 6 dB, 5,300 and 11,000, respectively, were obtained. The measured and calculated parameters of this resonator are in good agreement. Design guidelines and comparison of synchronous and asynchronous resonators are presented. Compared to synchronous resonators, low spurious signals' level, location of the resonance frequency near the center frequency of the reflectors, and simple design method make the asynchronous resonators more attractive for manufacture and practical applications
机译：在表面横波（STW）异步谐振器中，将光栅移相器放置在叉指式换能器和反射器之间，以获取同相的入射波和反射波，并且谐振频率位于反射器的中心频率附近。在本文中，采用散射矩阵法设计这种具有一种主要纵向模式的谐振器。在约509.5 MHz的频率下，分别获得了插入损耗和约6 dB，5,300和11,000的有载和无载品质因数。该谐振器的测量和计算参数非常一致。介绍了设计指南以及同步和异步谐振器的比较。与同步谐振器相比，低杂散信号电平，谐振频率在反射器中心频率附近的位置以及简单的设计方法使异步谐振器对于制造和实际应用更具吸引力

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