APPLYING RF ENERGY ACCORDING TO TIME VARIATIONS IN EM FEEDBACK
3 Assignments
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Accused Products
Abstract
An apparatus for applying RF energy to process an object may include at least one controller configured to receive EM feedback-related values from an energy application zone, each of the values being associated with a respective MSE. The controller may also be configured to identify a change in one or more of the EM feedback-related values within a period of time; adjust the RF energy application based on the change in the EM feedback-related values identified, and cause application of RF energy to the energy application zone.
67 Citations
72 Claims
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1. (canceled)
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2-43. -43. (canceled)
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44. A method of processing an object in a cavity by applying radio frequency (RF) energy to the cavity, the method comprising:
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identifying rapidly changing frequencies, characterized in that a time derivative of a value indicative of a dielectric response of the cavity to RF energy at a rapidly changing frequency is larger than a first threshold; and applying more energy at frequencies identified as rapidly changing frequencies than at other frequencies. - View Dependent Claims (45, 46, 47, 48, 49)
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50. A method of processing an object in a cavity by applying radio frequency (RF) energy to the cavity, the method comprising applying RF energy to the cavity at a plurality of frequencies, and
for each frequency: -
receiving a value indicative of a dielectric response of the cavity to RF energy applied; identifying a change over time in the value indicative of the dielectric response of the cavity to RF energy; and adjusting the RF energy application based on the identified change. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58)
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59. An apparatus for processing an object in a cavity by applying radio frequency (RF) energy to the cavity, the apparatus comprising:
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an RF source; and a controller programmed to; identify rapidly changing frequencies, characterized in that a time derivative of a value indicative of a dielectric response of the cavity to RF energy at a rapidly changing frequency is larger than a first threshold; and cause the RF source to apply more energy at frequencies identified as rapidly changing frequencies than at other frequencies. - View Dependent Claims (60, 61, 62, 63, 64)
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65. An apparatus for processing an object in a cavity by applying radio frequency (RF) energy to the cavity, the apparatus comprising:
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a source of RF energy; an antenna configured to feed RF energy from the source to the cavity; and a controller configured to control the source to apply RF energy to the cavity via the antenna at a plurality of frequencies, wherein the controller is programmed to; identify for each of the plurality of frequencies a change over time in a value indicative of the dielectric response of the cavity to RF energy applied at the each of the plurality of frequencies; and adjust the RF energy application at the each of the plurality of frequencies based on the identified change. - View Dependent Claims (66, 67, 68, 69, 70, 71, 72)
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Specification