Single-chip mixer-based subarray beamformer for sub-Nyquist sampling in ultrasound imaging

Kanemoto, Daisuke; Spaulding, Jonathon; Murmann, Boris

Japanese Journal of Applied Physics, 2021, 60, SBBL08

Number of Access:260（2025-08-13 22:22 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/97769

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Title
Single-chip mixer-based subarray beamformer for sub-Nyquist sampling in ultrasound imaging
Creator
NRID
1000090603332 1000090603332
researchmap permalink
dkanemoto dkanemoto
Scopus Author ID
6504308983 6504308983
ORCID
0009-0002-7564-6351 0009-0002-7564-6351
CreatorName
Kanemoto, Daisuke
CreatorName
Spaulding, Jonathon
CreatorName
Murmann, Boris
Description
Kanemoto D., Spaulding J., Murmann B.. Single-chip mixer-based subarray beamformer for sub-Nyquist sampling in ultrasound imaging. Japanese Journal of Applied Physics 60, SBBL08 (2021); https://doi.org/10.35848/1347-4065/abec8b.
Abstract
Compressed sensing (CS) has been proposed as a method of breaking the seemingly inherent tradeoff between sampling rate and resolution in a variety of applications, such as ultrasound imaging. Although various studies have demonstrated the effectiveness of using CS for sub-Nyquist sampling in ultrasound imaging, a dedicated integrated circuit (IC) has not yet been presented. This work introduces a single-chip mixer-based subarray beamformer, an important component for sub-Nyquist sampling in a CS ultrasound imaging system. The beamformer chip, which performs mixing, filtering, and summation of delayed signals within a subarray, is implemented using a single operational transconductance amplifier. We evaluated the performance of the proposed mixer-based subarray beamformer circuit fabricated using a 65 nm CMOS process with 0.4 mW ch-1 power consumption from a 1.2 V supply. Measurement results indicate that the prototype chip is suitable for subarray beamforming with a 5 ns resolution digital mixing sequence. The IC presented here is the first known implementation of a mixer-based subarray beamformer for sub-Nyquist sampling in ultrasonic applications and is expected to reduce sampling data requirements by a factor of 32.
Publisher
IOP Publishing Ltd
Source Title
Japanese Journal of Applied Physics
Volume (Issue)
60
Page
SBBL08
Date of Issued
2021-05-01
Language
English
Handle URL
https://hdl.handle.net/11094/97769
PISSN
00214922
eISSN
13474065
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.35848/1347-4065/abec8b
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
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Version of Record
Category
学術雑誌論文 Journal Article