FDTD modeling of a coherent-Addition antenna array for early-stage detection of breast cancer

S. C. Hagness, A. Taflove, J. E. Bridges

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

A novel pulsed microwave confocal system for the detection of breast cancer has been proposed by Hagness, Taflove and Bridges (see Proc. of the IEEE Engineering in Medicine and Biology, Society Conference, p.2506-8, Chicago, IL, 1997). An elliptical reflector focuses a microwave signal at a potential tumor site and efficiently collects the backscattered energy by refocusing it at the point of origin of the illumination. This technology is based upon two fundamental dielectric properties of breast tissues at microwave frequencies: (1) the large contrast in ϵr and σ between malignant and normal tissues, which causes tumors to have significantly greater microwave scattering cross sections than normal tissues of comparable geometry; and (2) the low attenuation in normal breast tissue (less than 4 dB/cm up to 10 GHz), which permits constructive addition of wideband backscattered returns using confocal-imaging techniques. We replace the fixed-focus elliptical reflector reported by Hagness et al. with a variable-focus antenna array and extend the range of breast tissue structures modeled to include small tumors obscured by veins and mammary glands and ducts.

Original languageEnglish (US)
Title of host publicationIEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas
Subtitle of host publicationGateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1220-1223
Number of pages4
ISBN (Print)0780344782, 9780780344785
DOIs
StatePublished - 1998
Event1998 IEEE Antennas and Propagation Society International Symposium, APSURSI 1998 - Atlanta, United States
Duration: Jun 21 1998Jun 26 1998

Publication series

NameIEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas: Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting
Volume2

Other

Other1998 IEEE Antennas and Propagation Society International Symposium, APSURSI 1998
Country/TerritoryUnited States
CityAtlanta
Period6/21/986/26/98

ASJC Scopus subject areas

  • Instrumentation
  • Radiation
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'FDTD modeling of a coherent-Addition antenna array for early-stage detection of breast cancer'. Together they form a unique fingerprint.

Cite this