CMOS-Compatible Ultrasonic 3D Beamforming Sensor System for Automotive Applications
Source abstract
Abstract
This paper presents a fully electronic, CMOS-compatible ultrasonic sensing system integrated into a 3D beamforming architecture for advanced automotive applications. The proposed system eliminates mechanical scanning by implementing a dual-path beamforming structure comprising programmable transmit (TX) and receive (RX) paths. The TX beamformer introduces per-element time delays derived from steering angles to control the direction of ultrasonic wave propagation, while the RX beamformer aligns echo signals for spatial focusing. Electrostatic actuation governs the CMOS-compatible ultrasonic transmission mechanism, whereas dynamic modulation under acoustic pressure forms the reception mechanism. The system architecture supports full horizontal and vertical angular coverage, leveraging delay-and-sum processing to achieve electronically steerable beams. The system enables low-power, compact, and high-resolution sensing modules by integrating signal generation, beam control, and delay logic within a CMOS framework. Theoretical modeling demonstrates its capability to support fine spatial resolution and fast response, making it suitable for integration into autonomous vehicle platforms and driver-assistance systems.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Wireless Power Transfer Systems · Ultrasound Imaging and Elastography
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Mobility Semiconductor Engineering, Sun Moon University, Asan 31460, Republic of Korea
Department of Display & Semiconductor Engineering, Sun Moon University, Asan 31460, Republic of Korea
Research Center for Nano-Bio Science, Sun Moon University, Asan 31460, Republic of Korea
Department of Engineering Technology, Texas State University, San Marcos, TX 78666, USA
Funding
Korean government · Institute of Information & Communications Technology Planning & Evaluation (IITP) · IC Design Education Center (IDEC)
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