An ultra-wideband microwave tomography system: preliminary results

Annu Int Conf IEEE Eng Med Biol Soc. 2009:2009:2288-91. doi: 10.1109/IEMBS.2009.5335060.

Abstract

We describe a 2D wide-band multi-frequency microwave imaging system intended for biomedical imaging. The system is capable of collecting data from 2-10 GHz, with 24 antenna elements connected to a vector network analyzer via a 2 x 24 port matrix switch. Through the use of two different nonlinear reconstruction schemes: the Multiplicative-Regularized Contrast Source Inversion method and an enhanced version of the Distorted Born Iterative Method, we show preliminary imaging results from dielectric phantoms where data were collected from 3-6 GHz. The early inversion results show that the system is capable of quantitatively reconstructing dielectric objects.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms
  • Biomedical Engineering / methods
  • Calibration
  • Equipment Design
  • Humans
  • Microwaves*
  • Models, Statistical
  • Phantoms, Imaging
  • Reproducibility of Results
  • Signal Processing, Computer-Assisted
  • Tomography / instrumentation
  • Tomography / methods*