Lumped Element Modeling of CMUT Arrays in Collapsed Mode

被引：4

作者：

Aydogdu, Elif ^{[1
,2
]}

Ozgurluk, Alper ^{[3
]}

Atalar, Abdullah ^{[2
]}

Koymen, Hayrettin ^{[2
]}

机构：

[1] ASELSAN, Ankara, Turkey

[2] Bilkent Univ, Dept Elect & Elect Engn, Bilkent, Turkey

[3] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA

来源：

2014 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS) | 2014年

关键词：

CELL;

D O I：

10.1109/ULTSYM.2014.0076

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This study focuses on modeling collapsed mode operation of CMUT arrays, and obtaining a small signal lumped element model for collapsed mode operation. Having the large signal model for single CMUT from previous studies, the mutual radiation impedance is presented for the collapsed mode, and a large signal model for a CMUT array is obtained for simulating the operation in both uncollapsed and collapsed modes. For faster computation, a small signal model for a CMUT cell is derived by linearizing the collapsed mode operation at a given bias point, and the computation time is reduced significantly. Using this model we are able to simulate a large array of collapsed CMUT cells.

引用

页码：309 / 312

页数：4

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