Dual-antenna applicator for hyperthermia of tumours at intermediate depth

L. B. Leybovich*, B. Emami, R. J. Myerson, W. L. Straube, V. Sathiaseelan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


A dual-antenna applicator with 21 ±26 cm 2 aperture, that is fully loaded and operates at 74 MHz, was developed at the Mallinckrodt Institute of Radiology. By placing two antennas into an applicator capable of propagating TE 10 mode, a significant enlargement of heating pattern was achieved without an increase in applicator dimensions. When antennas are placed symmetrically about a parallel to the antenna axis of symmetry, the sensitivity of the applicator input impedance to variations of load impedance reduces. Stable coupling of the RF power to the treatment area may be provided. Twenty patients with eccentrically located tumours were treated using this device.

Original languageEnglish (US)
Pages (from-to)455-464
Number of pages10
JournalInternational Journal of Hyperthermia
Issue number3
StatePublished - Jan 1 1991


  • Applicator
  • Coupling
  • Electromagnetic
  • Penetration

ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)
  • Cancer Research

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