# US 2019/0380177 A1 · Calibration of an rf processing system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0380177 A1 - Document ID: US20190380177A1 - Status: Published application - Kind: A1 - Application number: 16/549,454 - Filed: 2019-08-23 - Published: 2019-12-12 - Earliest claimed: 2013-05-21 - Assignees: Goji Limited - Applicants: Goji Limited - Inventors: Itzhak CHAIMOV; Avner LIBMAN - Web page: https://patentgrep.com/patent/US20190380177A1 ## CPC - H05B 6/68: for monitoring or control - H05B 6/6447: {Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors} - H05B 6/6452: {the sensors being in contact with the heated product} - H05B 6/6455: {the sensors being infrared detectors} - H05B 6/6458: {using humidity or vapor sensors} - H05B 6/664: {Aspects related to the power supply of the microwave heating apparatus} - H05B 6/686: {Circuits comprising a signal generator and power amplifier, e.g. using solid state oscillators} - H05B 6/705: {using microwave tuning} - H05B 6/72: Radiators or antennas - Y02B 40/00: Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract Method of processing an object in an energy application zone by radio frequency (RF) radiation emitted by one or more radiating elements configured to emit the RF radiation in response to RF energy applied thereto, wherein the method includes controlling supply of RF energy to the one or more radiating elements via an RF energy supply component, receiving measured response values produced based on RF energy received by the one or more radiating elements from the energy application zone, accessing a stored set of coefficients associated with the RF energy supply component, said set of coefficients being utilized to transform the measured response values and controlling application of RF energy to the one or more radiating elements based on the measured response values and the set of coefficients. ## Claims ### Claim 1 A method of processing an object in an energy application zone by radio frequency (RF) radiation emitted by one or more radiating elements configured to emit the RF radiation in response to RF energy applied thereto, the method comprising: controlling supply of RF energy to the one or more radiating elements via an RF energy supply component; receiving measured response values produced based on RF energy received by the one or more radiating elements from the energy application zone; accessing a stored set of coefficients associated with the RF energy supply component, said set of coefficients being utilized to transform the measured response values; and controlling application of RF energy to the one or more radiating elements based on the measured response values and the set of coefficients. ### Claim 2 (depends on 1) The method of claim 1, wherein the set of coefficients associated with the RF energy supply component includes values of network parameters of the RF energy supply component. ### Claim 3 (depends on 1) The method of claim 1, wherein the set of coefficients associated with the RF energy supply component includes error correction coefficients configured to correct systematic errors in the functioning of the RF energy supply component. ### Claim 4 (depends on 1) The method of claim 1, wherein one or more coefficients from the set of coefficients are indicative of an electrical response of the RF energy supply component to an electrical signal. ### Claim 5 (depends on 1) The method of claim 1, wherein the RF energy supply component includes a dual directional coupler having directivity below 30 dB. ### Claim 6 (depends on 1) The method of claim 1, wherein the processor comprises: a first processing unit, configured to receive the feedback, and correct the received feedback based on the set of coefficients; and a second processing unit, configured to control the application of the RF energy based on the corrected feedback. ### Claim 7 (depends on 1) The method of claim 1, wherein the processor is configured to: correct the received feedback based on the set of coefficients; and control the application of the RF energy based on the corrected feedback. ### Claim 8 (depends on 1) The method of claim 1, wherein the RF energy supply component includes an RF energy source. ### Claim 9 (depends on 1) The method of claim 1 wherein the RF energy supply component includes an RF energy transmission line. ### Claim 10 (depends on 1) The method of claim 1, wherein the at least one RF energy supply component comprises at least two RF energy supply components and wherein the memory is configured to store at least two sets of coefficients, each set of coefficients being associated with a respective RF energy supply component. ### Claim 11 (depends on 1) The method of claim 1, wherein the processor is configured to receive the feedback during a scanning stage and to control the application of the RF energy during a processing stage based on feedback received during the scanning stage. ### Claim 12 (depends on 1) The method of claim 1, wherein the processor is configured to receive the feedback during a scanning stage, within which RF radiation is emitted from the one or more radiating elements for determining one or more absorption characteristics of the object without substantially processing the object. ### Claim 13 (depends on 1) The method of claim 1, wherein the received feedback includes information for each of a plurality of frequencies of RF radiation emitted from the one or more radiating elements. ### Claim 14 (depends on 1) The method of claim 1, wherein the received feedback includes information associated with each of the one or more radiating elements. ### Claim 15 (depends on 1) The method of claim 1, wherein the received feedback includes one or more network parameter values depending on a response of the energy application zone to the emission of the RF radiation. ### Claim 16 (depends on 1) The method of claim 1, wherein the processor is configured to determine a corrected electrical characteristic of the object based on the received feedback and the set of coefficients stored in the memory. ### Claim 17 (depends on 1) The method of claim 1, wherein the set of coefficients comprises at least one coefficient per frequency of the emitted RF radiation. ### Claim 18 (depends on 1) The method of claim 1, wherein one or more coefficients of the set of coefficients are indicative of network parameter values of the RF energy supply component that can be determined using a network analyzer. ### Claim 19 (depends on 18) The method of claim 18, wherein the network parameter values are indicative of a ratio between a reflected signal voltage and an incident signal voltage in the RF energy supply component. ### Claim 20 (depends on 18) The method of claim 18, wherein the network parameter values are indicative of a ratio between a transmitted signal voltage and an incident signal voltage in the RF energy supply component. ### Claim 21 A method of processing an object in an energy application zone by radio frequency (RF) radiation emitted by one or more radiating elements configured to emit the RF radiation in response to RF energy supplied thereto, the method comprising: supplying, via an RF energy supply component, RF energy to the one or more radiating elements; detecting, measuring or sensing, via an RF energy measuring arrangement, RF energy that is: emitted by the one or more radiating elements to the energy application zone; and received by the one or more radiating elements from the energy application zone; producing, via said RF energy measuring arrangement, measured response values; storing, via a memory, a set of coefficients associated with the RF energy supply component, said set of coefficients being utilized to transform the measured response values; receiving, via a processor, feedback from the RF energy measuring device in response to emission of RF radiation by the one or more radiating elements; and controlling application of RF energy to the energy application zone by the one or more radiating elements based on the feedback and the set of coefficients. ### Claim 22 A method of processing an object in an energy application zone by radio frequency (RF) radiation emitted by one or more radiating elements configured to emit the RF radiation in response to RF energy supplied thereto, the method comprising: supplying, via an RF energy supply component, RF energy to the one or more radiating elements; producing, via a measurement arrangement, measured response values, said measurement arrangement including a detector configured to detect feedback and a sensor configured to measure feedback related values in the energy application zone; storing, via a memory, a set of coefficients associated with the RF energy supply component, said set of coefficients being utilized to transform the measured response values; receiving, via a processor, the feedback from the detector in response to emission of RF radiation by the one or more radiating elements; and controlling, via the processor, application of RF energy to the one or more radiating elements based on the feedback and the set of coefficients.