一种改进的方法来计算射频表面声波过器中数字间传感器之间的相互电容
Yali Zou1, Xinyu Yang2, Ping Luo2
1School of Microelectronics, Shanghai University, Shanghai 200444, China.
Micromachines
|May 25, 2024
概括
本研究介绍了一种增强的方法来计算数字间传感器 (IDT) 的相互电容,从而提高了表面声波 (SAW) 波模拟器的准确性. 新方法为SAW设备提供了更快的计算和精确的电响应预测.
科学领域:
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
- 计算物理 计算物理
背景情况:
- 精确模拟表面声波 (SAW) 过器和重复器对于现代电子设备至关重要.
- 传统的模式合 (COM) 模型通常需要在数字间传感器 (IDT) 的电容计算中提高准确性.
研究的目的:
- 开发一种改进的方法来计算IDT电极之间的相互电容.
- 为了提高COM模型的准确性和计算速度,用于SAW设备模拟.
主要方法:
- 用边界元素方法 (BEM) 来确定分层介质中每单位长度的电容.
- 部分电容 (PC) 方法被用来推导多层IDT的有效相对电容性.
- 数值结果与商用模拟软件进行了验证.
主要成果:
- 提出的方法证明了与商业软件一致的结果,验证了它的准确性.
- 新的计算方法在速度方面明显优于商业软件.
- 实现了对双模式SAW (DMS) 过器的精确电响应预测.
结论:
- 改进的电容计算方法提高了SAW设备的COM模型的准确性和效率.
- 这种超快速计算技术适合纳入过器设计优化流程.
- 该方法为模拟SAW过器和重复器提供了经过验证和更快的替代方案.
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