Numerical analysis of microwave detection of breast tumours using synthetic focussing techniques

R Nilavalan, JA Leendertz, IJ Craddock, AW Preece, R Benjamin

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

14 Citations (Scopus)
276 Downloads (Pure)


Microwave detection of breast tumours is a non-ionising and potentially low-cost and more certain alternative to X-ray mammography. Analogous to ground penetrating radar (GPR), microwaves are transmitted using an antenna array and the reflected signals, which contain reflections from tumours, are recorded. The work presented here employs a post reception synthetically focussed detection method developed for land mine detection (R. Benjamin et al., IEE Proc. Radar, Sonar and Nav., vol. 148, no.4, pp. 233-40, 2001); all elements of an antenna array transmit a broadband signal in turn, the elements sharing a field of view with the current transmit element then record the received signal. By predicting the path delay between transmit and receive antennas via any desired point in the breast, it is then possible to extract and time-align all signals from that point. Repeated for all points in the breast, this yields an image in which the distinct dielectric properties of malignant tissue are potentially visible. This contribution presents a theoretical evaluation of the breast imaging system using FDTD methods. The FDTD model realistically models a practical system incorporating wide band antenna elements. One major challenge in breast cancer detection using microwaves is the clutter arising from skin interface. Deeply located tumours can be detected using windowing techniques (R. Nilavalan et al., Electronics Letters, vol. 39, pp. 1787-1789, 2003); however tumours closer to the skin interface require additional consideration, as described herein.
Translated title of the contributionNumerical analysis of microwave detection of breast tumours using synthetic focussing techniques
Original languageEnglish
Title of host publicationIEEE Antennas and Propagation Society International Symposium 2004, Monterey, USA
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages2440 - 2443
Number of pages4
ISBN (Print)0780383028
Publication statusPublished - Jun 2004
EventIEEE Antennas and Propagation Society International Symposium - Monterey, United States
Duration: 1 Jun 2004 → …


ConferenceIEEE Antennas and Propagation Society International Symposium
Country/TerritoryUnited States
Period1/06/04 → …

Bibliographical note

Rose publication type: Conference contribution

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