Multi-frequency PMUT array

92% transmission bandwidth

By densely arranging cells of different frequencies to enhance coupling, this array achieves a 92% transmission bandwidth at 6 MHz, significantly surpassing the narrow bandwidth of traditional PMUTs and enabling higher axial resolution in ultrasound imaging.

Li, Huimin · Wang, Zhuochen · Xu, Xingli · Xiaofan, Hu · Niu, Pengfei · Pang, Wei

Micromachines 2024

Specifications

水下测试传输带宽

{'zh': '92', 'en': ''} %

水下测试突发回波带宽

{'zh': '50', 'en': ''} %

心频率

{'zh': '6', 'en': ''} MHz

Advantages

32 units arranged in a frequency gradient