线阵与凸阵换能器开关网络的一种设计方法

在使用线阵和凸阵换能器的超声成像设备中，阵元开关网络用来选择参加超声收发所需的阵元，为了电子聚焦及变孔径，需要在发射及接收电路中加入整序网络。在采用变迹技术的设备中，特别是数字化超声成像设备中，整序网络的规模将增加很多。文中提出了一种一体化开关网络设计方法，可以明显地简化整序网络的结构，并减少开关网络的规模。

A Design Method of the Switching Network for the Linear and Convex Array Transducer

In ultrasound imaging equipment using linear and convex transducer,the switching networkof the transducer array is applied to select the elements for transmiting and receiving ultrasound.Theordering network is added in transmiting and receiving circuits for electronic feeusing and variable aperture.For the equipment using an apodozation technique,especially in the digitized ultrasound imaging equipment,the scale of the ordering network increases largely.This paper proposes.a design method of the umfiedswitching network,by which the architecture of the ordering network can be simplified obviously,and thescale of the switching network can be also reduced.