Front-end receiver electronics for a matrix transducer for 3-D transesophageal echocardiography

Z Yu, S Blaak, ZY Chang, J Yao… - IEEE transactions on …, 2012 - ieeexplore.ieee.org
There is a clear clinical need for creating 3-D images of the heart. One promising technique
is the use of transesophageal echocardiography (TEE). To enable 3-D TEE, we are …

An analog integrated circuit beamformer for high-frequency medical ultrasound imaging

G Gurun, JS Zahorian, A Sisman… - IEEE transactions on …, 2012 - ieeexplore.ieee.org
We designed and fabricated a dynamic receive beamformer integrated circuit (IC) in 0.35-
μm CMOS technology. This beamformer IC is suitable for integration with an annular array …

A programmable analog delay line for Micro-beamforming in a transesophageal ultrasound probe

Z Yu, MAP Pertijs, GCM Meijer - 2010 10th IEEE international …, 2010 - ieeexplore.ieee.org
Our research project is to design a readout IC for an ultrasonic transducer consisting of a
matrix of more than 2000 elements. The IC and the matrix transducer will be put into the tip …

Analog 2D fan filters from discrete domain transfer functions

A Madanayake, L Belostotski… - … of Circuits and …, 2011 - ieeexplore.ieee.org
A continuous-time discrete-space 2D IIR fan filter is proposed for ultra-wideband
beamforming for uniform linear arrays of antennas. The proposed signal-flow-graph …

An analog beamformer for integrated high-frequency medical ultrasound imaging

G Gurun, J Zahorian, C Tekes… - … circuits and systems …, 2011 - ieeexplore.ieee.org
We designed and fabricated a dynamic receive beamforming integrated circuit (IC) in 0.35-
μm CMOS technology. This beamformer is suitable for integration with an ultrasound …

An Analog Neural Network for Wideband Predistortion of Pico-cell Power Amplifiers

MK Ngwar - 2015 - repository.library.carleton.ca
Pico-cell base-station power amplifiers (PA) generally generate less than 2W of power and
operate at peak efficiency. This implies that to meet stringent wideband wireless standards …

An annular CMUT array beamforming system for high-frequency side looking IVUS imaging

S Satir, G Gurun, J Zahorian, M Karaman… - 2010 IEEE …, 2010 - ieeexplore.ieee.org
A CMUT annular array system for Side-Looking Intravascular Ultrasound (SL-IVUS) with
fixed transmit and dynamic receive focusing capabilities has been developed. The system …

Low power front end electronics for in-probe beamforming in ultrasound imaging

S Sharma, T Ytterdal - 2013 NORCHIP, 2013 - ieeexplore.ieee.org
A Class AB time gain compensation (TGC) circuit and a switched current analog beam
former are designed for an ultrasound low power front-end receiver. The TGC also acts as a …

A low power analog RAM implementation for in-probe beamforming in ultrasound imaging

S Sharma, T Ytterdal - … on Circuit Theory and Design (ECCTD), 2013 - ieeexplore.ieee.org
An Analog RAM architecture for beamforming based on switched current circuits is
presented. The proposed architecture allows the sharing of the same bias current for …

Solid-state SL-IVUS arrays based on non-uniform aperture sampling

A Şişman, M Karaman, G Gürün… - 2010 IEEE …, 2010 - ieeexplore.ieee.org
We propose new reconfigurable ring and cylindrical array designs using non-uniform
(Fresnel) aperture sampling with identical differential delays between adjacent elements …