A technique for the reduction of third‐order intermodulation distortion (IMD3) occurring in bulk acoustic wave (BAW) filters and multiplexers is presented. The method consists of using the intrinsic second‐order intermodulation distortion generated by BAW filters and multiplexers themselves by injecting an externally controlled amplitude and phase modulated signal at low frequency to compensate for the IMD3. The proposed technique has been experimentally verified by performing IMD3 measurements in a single BAW resonator subject to several modulated signals under a nonlinear scenario.

中文翻译：

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基于音调注入的抵消技术可减少BAW谐振器中调制信号的非线性失真

提出了一种减少在体声波（BAW）滤波器和多路复用器中发生的三阶互调失真（IMD3）的技术。该方法包括使用BAW滤波器和多路复用器自身产生的固有二阶互调失真，方法是注入外部控制的低频幅度和相位调制信号以补偿IMD3。通过在非线性情况下经受多个调制信号的单个BAW谐振器中执行IMD3测量，已对所提出的技术进行了实验验证。