The Design and Development of an Integrated Multi-Functional Microwave Antenna Structure for Biological Applications

A new multi-functional microwave antenna structure for use in biological applications in described. The antenna structure allows efficient propagation of Ku -band energy into biological tissue to perform in situ tissue characterization (measurement) and ablation or coagulation (treatment) of solid c...

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Bibliographic Details
Published inIEEE transactions on microwave theory and techniques Vol. 61; no. 5; pp. 2230 - 2241
Main Authors Hancock, C. P., Dharmasiri, N., White, M., Goodman, A. M.
Format Journal Article
LanguageEnglish
Published IEEE 01.05.2013
Subjects
Antenna measurements
Biological tissues
Brachytherapy
Ceramics
coagulation
conductivity
dielectric properties
false negatives
measurement of biological tissue properties
microwave ablation
Microwave antennas
multi-functional microwave antenna
needle biopsies
percutaneous insertion
relative permittivity
Tumors
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Summary:A new multi-functional microwave antenna structure for use in biological applications in described. The antenna structure allows efficient propagation of Ku -band energy into biological tissue to perform in situ tissue characterization (measurement) and ablation or coagulation (treatment) of solid cancerous tumors and surrounding tissue. A calibration method that allows tissue characterization has been developed. The structure also supports a separate channel to allow material to be transported inside the structure without affecting the electromagnetic field propagation within the structure and the radiation pattern produced at the distal end. The structure is rigid and of small enough diameter to enable it to be introduced percutaneously into the human body under local anaesthesia.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2013.2255620