# US 2010/0163552 A1 · Electromagnetically-countered microwave heating systems and methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0163552 A1 - Document ID: US20100163552A1 - Status: Published application - Kind: A1 - Application number: 12/318,544 - Filed: 2008-12-31 - Published: 2010-07-01 - Earliest claimed: 2008-12-31 - Inventors: Youngtack Shim - Web page: https://patentgrep.com/patent/US20100163552A1 ## CPC - H05B 6/6432: {Aspects relating to testing or detecting leakage in a microwave heating apparatus} - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract The present invention relates to an electromagnetically-countered microwave heating system which includes at least one wave source irradiating harmful electromagnetic waves and at least one counter unit emitting counter electromagnetic waves for countering the harmful waves by the counter waves. More particularly, the present invention relates to counter units for such electromagnetically-countered microwave heating systems and to various mechanisms for countering the harmful waves by the counter units such as, e.g., by matching configurations of the counter units with those of such wave sources, matching shapes of such counter waves with shapes of the harmful waves, and the like. The present invention also relates to various methods of countering the harmful waves with the counter waves using the source and/or wave matching and various methods of providing the counter units and emitting suitable counter waves. The present invention further relates to various processes for providing such systems, such counter units thereof, and the like. The present invention relates to various electric and/or magnetic shields which may be used alone or in conjunction with such counter units to minimize irradiation of the harmful waves from the system. ## Claims ### Claim 1 An electromagnetically-countered microwave heating system which is configured to include a plurality of wave sources each having at least one base unit and which is also capable of countering harmful electromagnetic waves irradiated by said base units of said wave sources by at least one of suppressing said harmful waves from propagating toward a target space and canceling said harmful waves in said target space, wherein said base units are configured to represent only portions of said wave source responsible for at least one of irradiating said harmful waves and affecting propagation paths of said harmful waves therethrough, wherein said target space is defined between at least one of said base units and an user of said system and wherein said harmful waves define frequencies of less than about 1 kHz comprising: at least one magnetron tube which is one of said wave sources and which is also configured to form a plurality of resonance cavities therein and to irradiate said harmful waves from each of said cavities, wherein at least one of said cavities serves as one of said base units; at least one transformer which is another of said wave sources and which is also configured to include at least one primary coil and at least one secondary coil and to convert electric energy of a first voltage into electric energy of a second higher voltage, wherein both of said coils serve as two of said base units; at least one actuator which is yet another of said wave sources and which is also configured to have at least one rotor and at least one stator and to generate rotation of said rotor by said electric energy, wherein at least one of said rotor and stator serves as one of said base units; and at least one counter unit which is configured to define a configuration at least partially similar to at least one of said base units and to emit counter electromagnetic waves which are configured to define phase angles at least partially opposite to those of said harmful waves irradiated from at least one of said base units, to define wave characteristics at least partially similar to those of said harmful waves irradiated by said at least one of said base units due to said configuration and, accordingly, to counter said harmful waves irradiated by said at least one of said base units preferentially due to said phase angles in said target space. ### Claim 2 (depends on 1) The system of claim 1, wherein said system includes a single counter unit which is configured to have one of a first shape similar to only one of said coils, a second shape similar to an assembly of said coils, and a third shape similar to said transformer. ### Claim 3 (depends on 1) The system of claim 1, wherein said system includes a single counter unit which is configured to define one of a first shape similar to only one of said rotor and stator, a second shape similar to an assembly of said rotor and stator, and a third shape similar to said actuator. ### Claim 4 (depends on 1) The system of claim 1, wherein said system includes a single counter unit which is configured to define one of a first shape at least substantially similar to only one of said cavities, a second shape at least substantially similar to an assembly of at least two but not all of said cavities, a third shape at least substantially similar to an assembly of all of said cavities, and then a fourth shape which is also at least substantially similar to said magnetron tube. ### Claim 5 (depends on 4) The system of claim 4, wherein said counter unit is also configured to be disposed in one of a plurality of arrangements one of which is a lateral arrangement in which said counter unit is disposed side by side with at least one of said base units, a second of which is another lateral arrangement in which said counter unit is laterally stacked beside at least one of said base units, a third of which is a vertical arrangement in which said counter unit is disposed one of over and below at least one of said base units, a fourth of which is a concentric arrangement in which said counter unit is disposed in at least one of said base units, and a fifth of which is yet another concentric arrangement in which said counter unit is enclosing at least a portion of at least one of said base units. ### Claim 6 (depends on 1) The system of claim 1, wherein said system includes at least two counter units one of which is configured to define a shape at least substantially similar to at least one of said base units of said magnetron tube and another of which is configured to define a shape at least substantially similar to at least one of the rest of said base units. ### Claim 7 (depends on 6) The system of claim 6, wherein at least one of said counter units is configured to be disposed in one of a plurality of arrangements one of which is a lateral arrangement in which said at least one of said counter units is disposed side by side with respect to at least one of said base units, a second of which is a lateral arrangement in which said at least one of said counter units is laterally stacked beside at least one of said base units, a third of which is a vertical arrangement in which said at least one of said counter units is disposed one of over and below at least one of said base units, a fourth of which is a concentric arrangement in which said at least one of said counter units is disposed in at least one of said base units, and a fifth of which is another concentric arrangement in which said at least one of said counter units is enclosing at least a portion of at least one of said base units. ### Claim 8 (depends on 7) The system of claim 7, wherein at least two of said counter units are configured to be coupled to each other by at least one of a mechanical coupling, a magnetic coupling, and an electrical coupling. ### Claim 9 (depends on 8) The system of claim 8, wherein said coupling is in one of a series mode, a parallel mode, and a hybrid mode which is a combination of said series and parallel modes. ### Claim 10 (depends on 1) The system of claim 1, wherein said counter unit is configured to be incorporated between at least one of said base units and target space and to emit said counter waves of amplitudes less than amplitudes of said harmful waves for countering said harmful waves in said target space. ### Claim 11 (depends on 10) The system of claim 10, wherein said configuration of said counter unit is a dimension which is configured to be longer than that of each of said base units and to also match at least a portion of radii of curvature of said counter waves with at least a portion of radii of curvature of said harmful waves in said target space. ### Claim 12 (depends on 1) The system of claim 1, wherein said counter unit is configured to be disposed on an opposite side of said target space with respect to at least one of said base units and then to emit said counter waves of amplitudes greater than amplitudes of said harmful waves in order to counter said harmful waves in said target space. ### Claim 13 (depends on 12) The system of claim 12, wherein said configuration of said counter unit is a dimension which is configured to be shorter than that of each of said base units and to match at least a portion of radii of curvature of said counter waves with at least a portion of radii of curvature of said harmful waves in said target space. ### Claim 14 (depends on 1) The system of claim 1, wherein said counter waves propagate while defining a plurality of first wavefronts therealong, wherein said harmful waves propagate while defining a plurality of second wavefronts therealong, and wherein said counter unit is configured to emit said counter waves in a manner that at least a portion of at least one of said first wavefronts is configured to match at least a portion of at least one of said second wavefronts in said target space. ### Claim 15 An electromagnetically-countered microwave heating system which is configured to include a plurality of wave sources each having at least one base unit and which is also capable of countering harmful electromagnetic waves irradiated by said base units of said wave sources by at least one of suppressing said harmful waves from propagating toward a target space and canceling said harmful waves in said target space, wherein said base units are configured to represent only portions of said wave source responsible for at least one of irradiating said harmful waves and affecting propagation paths of said harmful waves therethrough, wherein said target space is defined between at least one of said base units and an user of said system and wherein said harmful waves define frequencies of less than about 1 kHz comprising: at least one magnetron tube which is one of said wave sources and which is also configured to form a plurality of resonance cavities therein and to irradiate said harmful waves from each of said cavities, wherein at least one of said cavities serves as one of said base units; at least one transformer which is another of said wave sources and which is also configured to include at least one primary coil and at least one secondary coil and to convert electric energy of a first voltage into electric energy of a second higher voltage, wherein both of said coils serve as two of said base units; at least one actuator which is yet another of said wave sources and which is also configured to have at least one rotor and at least one stator and to generate rotation of said rotor by said electric energy, wherein at least one of said rotor and stator serves as one of said base units; and at least one counter unit which is configured to define a configuration at least partially different from at least one of said base units, to be incorporated in a preset disposition, and to be supplied with electric voltage in a manner for emitting counter electromagnetic waves which define phase angles at least partially opposite to those of said harmful waves, which also have wave characteristics at least partially matching those of said harmful waves due to said disposition and, accordingly, which further counter said harmful waves due to said phase angles and wave characteristics in said target space. ### Claim 16 (depends on 15) The system of claim 15, wherein said counter waves propagate to said space while defining a plurality of first wavefronts therealong, wherein said harmful waves propagate thereto while defining a plurality of second wavefronts therealong, and wherein said counter unit is configured to emit said counter waves in a manner that at least a portion of at least one of said first wavefronts is configured to match at least a portion of at least one of said second wavefronts in said target space. ### Claim 17 An electromagnetically-countered microwave heating system which is configured to include a plurality of wave sources each having at least one base unit and which is also capable of countering harmful electromagnetic waves irradiated by said base units of said wave sources by at least one of suppressing said harmful waves from propagating toward a target space and canceling said harmful waves in said target space, wherein said base units are configured to represent only portions of said wave source responsible for at least one of irradiating said harmful waves and affecting propagation paths of said harmful waves therethrough, wherein said target space is defined between at least one of said base units and an user of said system, wherein said harmful waves have frequencies of less than about 1 kHz, and wherein said harmful waves propagate toward said target space while forming a plurality of wavefronts, said system comprising: at least one magnetron tube which is one of said wave sources and which is also configured to form a plurality of resonance cavities therein and to irradiate said harmful waves from each of said cavities, wherein at least one of said cavities serves as one of said base units; at least one transformer which is another of said wave sources and which is also configured to include at least one primary coil and at least one secondary coil and to convert electric energy of a first voltage into electric energy of a second higher voltage, wherein both of said coils serve as two of said base units; at least one actuator which is yet another of said wave sources and which is also configured to have at least one rotor and at least one stator and to generate rotation of said rotor by said electric energy, wherein at least one of said rotor and stator serves as one of said base units; and at least one counter unit which is configured to be disposed in an arrangement defined along at least one of said wavefronts and to be supplied with at least one of electric current and voltage in such a manner for emitting counter electromagnetic waves which have phase angles at least partially opposite to those of said harmful waves, propagate toward said target space while defining another plurality of wavefronts, and to counter said harmful waves due to said arrangement and said phase angles in said target space by matching at least a portion of at least one of said wavefronts of said harmful waves with at least a portion of at least one of said wavefronts of said counter waves. ### Claim 18 (depends on 17) The system of claim 17, wherein said counter unit is incorporated in a preset distance from at least one of said base units and target space such that said counter unit is configured to extend along a length greater than that of said at least one of said base units when disposed closer to said target space than said at least one of said base units and that said counter unit is configured to extend along another length which is less than that of said at least one of base units when disposed farther away from said target space than said base unit. ### Claim 19 (depends on 17) The system of claim 17, wherein said system is configured to have a plurality of said counter units at least two of which are configured to be disposed in said arrangement for at least one of said canceling and suppressing. ### Claim 20 (depends on 17) The system of claim 17, wherein said system is configured to have a plurality of said counter unit, wherein each of said wavefronts is configured to define a radius of curvature, and wherein at least two of said counter units are configured to manipulate said phase angles of said counter waves in such a manner that said at least two of said counter units emit counter waves with identical phase angles for increasing said radii of said curvature of said counter waves and that said at least two of said counter units emit counter waves having at least partially opposite phase angles for decreasing said radii of said curvature of said counter waves.