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首页> 外文会议>Ultrasonics Symposium (IUS), 2009 >One-parameter nonlinear mason model for predicting 2nd on6; 3rd order nonlinearities in BAW devices
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One-parameter nonlinear mason model for predicting 2nd on6; 3rd order nonlinearities in BAW devices

机译：用于预测2 nd on6的一参数非线性梅森模型; BAW设备中的3 rd 非线性

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Accurate modeling of the nonlinearities in BAW duplexers is important since handset manufacturers employing BAW duplexers at the handset ANT port desire low levels of 2nd harmonic emissions and intermodulation distortion. There are numerous papers describing ways in which non-linear behavior in BAW resonators can be modeled and it is generally agreed upon that it is the piezoelectric AlN that gives rise to this non-linear behavior. Little attention has been given to the generation of third order non-linear products and their impact on system performance. In this paper we present a non-linear model in which we assume that the piezoelectric constant is strain dependent. This second order model gives rise not only to second order mixing products but also to third order products. We show that this can happen through a process of re-mixing in which second order mixing products are initially generated in the piezoelectric AlN, and are subsequently remixed with the applied fundamental thus generating third order products. In this paper we compare measurements of second and third order behavior in duplexers and resonators to our model.
机译：BAW双工器中非线性的准确建模非常重要，因为在手机ANT端口使用BAW双工器的手机制造商希望获得低水平的二次谐波发射和互调失真。有许多论文描述了可以对BAW谐振器中的非线性行为进行建模的方式，并且普遍认为是压电AlN引起了这种非线性行为。对三阶非线性乘积及其对系统性能的影响的关注很少。在本文中，我们提出了一个非线性模型，其中我们假设压电常数与应变有关。该二阶模型不仅产生二阶混合产物，而且产生三阶产物。我们表明，这可以通过重新混合的过程来实现，在该过程中，二阶混合产物首先在压电AlN中生成，然后与所应用的基波进行重新混合，从而生成三阶产物。在本文中，我们将双工器和谐振器中二阶和三阶行为的测量结果与我们的模型进行了比较。

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