A Scalable Standing-Wave-Oscillator-based Imager with Near-Field-Modulated Pixels Achieving 64% Filling Factor for RF Intraoperative Imaging
- Resource Type
- Conference
- Authors
- Chien, Jun-Chau; Cheng, Zong-Jun; Chuang, Shu-Yan; Yeh, Hsiu-Cheng; Huang, Guan-Yu; Hou, Hung-Yu; Chen, Yi-Ting; Weng, Wei-Yang; Tseng, Chi-Yang; Lin, Liang-In
- Source
- 2022 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits) VLSI Technology and Circuits (VLSI Technology and Circuits), 2022 IEEE Symposium on. :162-163 Jun, 2022
- Subject
- Components, Circuits, Devices and Systems
Radio frequency
MOSFET
Power transmission lines
Imaging
Prototypes
Very large scale integration
Filling
- Language
- ISSN
- 2158-9682
This paper presents a near-field sensing architecture for RF intraoperative imaging. By modulating the fringing E-fields from a transmission line using NMOS transistors, localized near-field sensing with 51.2µm × 50µm resolution and 64% filling factor is achieved. The 180-nm CMOS prototype utilizes standing-wave oscillators for readout and demonstrates tumor tissue imaging.