Microwave hyperthermia applicator with variable radiation pattern
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United States of America Patent
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May 20, 1986
Grant Date -
N/A
app pub date -
Aug 22, 1983
filing date -
Aug 22, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A direct contact microwave hyperthermia applicator includes a plurality of rectangular waveguide sections each having a radiating aperture. The waveguide sections are mounted with their long sides abutting. A pair of shutter elements for individually varying the radiating aperture is associated with each of the waveguide sections. The shutters can be adjusted to form a desired composite aperture which produces a radiation pattern adapted for efficient hyperthermia treatment of a tumor having a prescribed size, shape and location. Microwave power supplied to the radiating elements can be varied in phase and power level to further control the radiation pattern.
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