title: Time-domain ultra-wideband synthetic imager (TUSI) in silicon.
abstract: This paper introduces a silicon-based imaging array for remote measurements of complex permittivity of tissue. Using a coherent pulsed measurement approach, this time-frequency resolved technique recovers the three dimensional mapping of electrical properties of the subject in the microwave/millimeter-wave frequency spectrum. Some of the major challenges in the design of the system are described. Initial measurement results from the prototype high-resolution transmitter fabricated in a 0.13 μm SiGe process are described. The transmitter achieves pulse widths suitable for millimeter-level accuracy imaging.
authors.affiliation: Berkeley Wireless Research Center, EECS Dept, UC Berkeley Berkeley, CA, USA.
authors.forename: Amin
authors.initials: A
authors.lastname: Arbabian
authors.forename: Ali M
authors.initials: AM
authors.lastname: Niknejad
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D008872:Microwaves; D010992:Plethysmography, Impedance / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*