Microwave hyperthermia induced by a phased interstitial antenna array

Journal Article

An interstitial microwave antenna array for hyperthermia cancer treatment is investigated. The purpose is to generate both uniform and controlled nonuniform temperature distributions in biological tissue by modulating the phases of the signals applied to each antenna. The array has four antennas positioned on the corners of a 2 cm square. The distributions of absorbed power within the arrays are computed and then converted into temperature distributions through a heat conduction simulation. The temperature patterns over phantom muscle are presented in both the lateral plane (perpendicular to the antennas) and the axial plane (parallel to the antennas). It is found that by proper phase modulation of radio frequency signals applied to each antenna, a uniform heating can be produced in the entire array volume.

Full Text

Duke Authors

Cited Authors

  • Zhang, Y; Joines, WT; Oleson, JR

Published Date

  • 1990

Published In

  • Ieee Transactions on Microwave Theory and Techniques

Volume / Issue

  • 38 / 2

Start / End Page

  • 217 - 221

Digital Object Identifier (DOI)

  • 10.1109/22.46434