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Sumitomo Electric USA Inc.推出的 SAW器件采用了金刚石薄膜以提高 SAW速率 ,从而实现石英所不能达到的 2～ 3.8GHz的高频。该器件插损 1 0 d B,Q值为 2 50～ 1 50 0 ,并具有良好的温度特性 (即 - 45～+ 85°C范围内 1 50× 1 0 -6)和较小的相位斜度。其应用领域包括 VCSO、
SAW devices from Sumitomo Electric USA Inc. use diamond films to increase the SAW rate to achieve high frequencies of 2 to 3.8 GHz that quartz can not reach. The device insertion loss 10 d B, Q value of 2 50 ~ 1 50 0, and has good temperature characteristics (ie - 45 ~ +85 ° C within the range of 150 × 10 -6) and a smaller phase tilt degree. Its application areas include VCSO,