IEEE Transactions on Ultrasonics, Ferroelectrics,
and Frequency Control

JANUARY 1996 Volume 43 Number 1

CONTENTS

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A Surface Micromachined Electrostatic Ultrasonic Air Transducer
M. I. Haller and B. T. Khuri-Yakub. . .1

Optimizing the Radiation Pattern of Sparse Periodic Linear Arrays
G. R. Lockwood, P.-C. Li, M. O'Donnell, and F. S. Foster. . .7

Optimizing the Radiation Pattern of Sparse Periodic Two-Dimensional Arrays
G. R. Lockwood and F. S. Foster. . .15

Extremely Low Thermal Noise Floor, High Power Oscillators Using Surface Transverse Wave Devices
I. D. Avramov, F. L. Walls, T. E. Parker, and G. K. Montress. . .20

An Electroacoustic Method for Measuring the Intensity of High-Power Microwave Pulses
B. D. Zaitsev, A. V. Ermolenko, V. A. Fedorenko, V. Y. Kalinin, and I. E. Kuznetsova. . .30

A High Sensitivity Hydrostatic Piezoelectric Transducer Based on Transverse Piezoelectric Mode Honeycomb Ceramic Composites
Q. M. Zhang, H. Wang, J. Zhao, J. T. Fielding, Jr., R. E. Newnham, and L. E. Cross. . .36

Adaptive Compensation of Phase and Magnitude Aberrations
S. Krishnan, P.-C. Li, and M. O'Donnell. . .44

Poisson's Ratio for Tetragonal, Hexagonal, and Cubic Crystals
A. Ballato. . .56

Optimization of Broadband Transducer Designs by Use of Statistical Design of Experiments
R. E. McKeighen. . .63

Sensitivity of Lamb Wave Sensors in Liquid Sensing
J. Wu and Z. Zhu. . .71

Elastic Surface Wave Devices Based on Piezoelectric Thick-Films
G. De Cicco, B. Morten, and M. Prudenziati. . .73

Numerical Analysis of the Radiated Fields of Circular Pistons and Time-Delay Spherically Focused Arrays
T. Xue, W. Lord, and S. Udpa. . .78

The Monopole-Source Solution for Estimating Tissue Temperature Increases for Focused Ultrasound Fields
D. S. Ellis and W. D. O'Brien, Jr.. . .88

Assessing the Influence of Pillar Aspect Ratio on the Behavior of 1-3 Connectivity Composite Transducers
G. Hayward and J. Bennett. . .98

Nonlinear Clutter Suppression Using Split Spectrum Processing and Optimal Detection
M. G. Gustafsson. . .109

Miniaturized SAW Filters Using a Flip-Chip Technique
H. Yatsuda, T. Horishima, T. Eimura, and T. Ooiwa. . .125

A New Coded-Excitation Ultrasound Imaging System - Part I: Basic Principles
J. Shen and E. S. Ebbini. . .131

A New Coded-Excitation Ultrasound Imaging System - Part II: Operator Design
J. Shen and E. S. Ebbini. . .141

Estimation of Blood Velocity with High Frequency Ultrasound
K. W. Ferrara, B. G. Zagar, J. B. Sokil-Melgar, R. H. Silverman, and I. M. Aslanidis. . .149

Ultrasonic Wave Propagation Through Aberrating Layers: Experimental Verification of the Conjugate Gradient Rayleigh Method
L. A. F. Ledoux, A. P. Berkhoff, and J. M. Thijssen. . .158

Ultrasonic Beam Steering Through Inhomogeneous Layers with a Time Reversal Mirror
C. Dorme and M. A. Fink. . .167

Semi-Infinite Optimization Formulation to Obtain Accurate Phenomenological Models for All Phases of Ferroelectric-Ferroelastic Crystals
L. Vu-Quoc and V. Srinivas. . .176

Young's Modulus Measurements of Soft Tissues with Application to Elasticity Imaging
E. J. Chen, J. Novakofski, W. K. Jenkins, and W. D. O'Brien, Jr.. . .191