Dual-antenna applicator for hyperthermia of tumours at intermediate depth

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

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


A dual-antenna applicator with 21 ±26 cm2 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 TE10 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
Pages (from-to)455-464
Number of pages10
JournalInternational Journal of Hyperthermia
Issue number3
StatePublished - 1991


  • Applicator
  • Coupling
  • Electromagnetic
  • Penetration


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