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公开(公告)号：US20240138910A1
公开(公告)日：2024-05-02
申请号：US18410776
申请日：2024-01-11
发明人： Serena H. Wong
CPC分类号： A61B18/1815 , H05B6/72 , A61B2017/00867
摘要： A flexible instrument comprises an antenna having a distal tip portion, a proximal base, and an antenna body therebetween. The antenna body comprises a patterned cylindrical structure having a proximal end coupled to the proximal base and a distal end coupled to the distal tip portion. The flexible instrument is configured to generate a radiation pattern from the antenna to ablate tissue.
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公开(公告)号：US11889610B2
公开(公告)日：2024-01-30
申请号：US17420613
申请日：2019-12-11
发明人： Haijuan Wang , Lixiao Zhang , Peng Li , Xiaobing Zhu
摘要： The present invention discloses an electromagnetic wave generating system, including an electromagnetic generating module, a radiating assembly and a matching unit connected in series between the electromagnetic generating module and the radiating assembly. The electromagnetic generating module is configured to generate an electromagnetic wave signal. The radiating assembly includes one or more radiating units and is configured to be electrically connected with the electromagnetic generating module to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal. The matching unit includes a first matching module, a second matching module and a fixed value inductor. The input end of the first matching module is configured to be electrically connected with the electromagnetic generating module. The fixed value inductor is connected in series between the output end of the first matching module and the radiating assembly. The input end of the second matching module is connected in series between the output end of the first matching module and the inductor, and the output end of the second matching module is configured to be grounded. The first matching module and the second matching module respectively include a plurality of parallel branches to realize a load combination that is several times the sum of the number of the parallel branches of the two matching modules.
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公开(公告)号：US20230422362A1
公开(公告)日：2023-12-28
申请号：US18464871
申请日：2023-09-11
发明人： Shinji Yamada , Tomoki Maruyama , Takaaki Yamasaki
摘要： A microwave irradiation device including: a holder that holds an irradiated object; a power feeder configured to conduct with an oscillator; and a directional antenna configured to emit microwaves from an irradiation source in an irradiation surface by power feed through conduction via the power feeder.
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公开(公告)号：US11804807B2
公开(公告)日：2023-10-31
申请号：US16312329
申请日：2016-12-30
摘要： An RF generation system is provided for an electromagnetic cooking device having a cavity. The system includes: a signal generator for generating an input RF signal; an RF feed configured to introduce electromagnetic radiation into the cavity and to receive reflected electromagnetic radiation from the cavity; and a high-power amplifier coupled between the signal generator and the RF feed. The high-power amplifier including an amplifying stage configured to output a signal that is amplified in power, and a circulator for directing the amplified output signal to the RF feed and for redirecting any reflected radiation received from the RF feed to a dummy load. The system further includes a hardware protection component for detecting backward power in the reflected radiation and for reducing power supplied to the amplifying stage if the backward power exceeds a power threshold within a time scale that prevents damage to the circulator.
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公开(公告)号：US11690147B2
公开(公告)日：2023-06-27
申请号：US16310843
申请日：2016-12-29
发明人： Davide Guatta , Valeria Nocella
摘要： An electromagnetic cooking device and method of controlling the same is provided herein. The cooking device includes a cavity in which a liquid is placed and a plurality of RF feeds configured to introduce electromagnetic radiation into the cavity for heating the liquid. A controller is provided and is configured to analyze forward and backward power at the plurality of RF feeds to calculate efficiency; determine and monitor a coefficient of variation of the efficiency; detect a heating state in the liquid based on changes in the coefficient of variation; and adjust a power level of the electromagnetic radiation in response to detection of the heating state.
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公开(公告)号：US11683867B2
公开(公告)日：2023-06-20
申请号：US17052968
申请日：2019-05-15
发明人： Yoshiharu Oomori , Mikio Fukui , Daisuke Hosokawa
摘要： A microwave treatment device includes a plurality of radiation parts, a transmission line, and a plurality of feeding parts. The plurality of radiation parts includes first, second, and third radiation parts, and radiates a microwave. The transmission line has a loop line structure provided with a plurality of branch parts including first, second, and third branch parts, and transmits the microwave to the first, second, and third radiation parts respectively connected to the first, second, and third branch parts. The plurality of feeding parts includes the first feeding part and the second feeding part arranged in the transmission line at an interval of ¼ or less of the wavelength of the microwave, and transmits the microwave to the transmission line. According to this aspect, a radiation part that radiates the microwave can be selectively switched. This enables the intended heating distribution to be achieved.
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公开(公告)号：US20190254127A1
公开(公告)日：2019-08-15
申请号：US16394080
申请日：2019-04-25
申请人： NXP USA, Inc.
发明人： Minyang Ma , Gregory J. Durnan , Steven Y. Do
CPC分类号： H05B6/686 , H05B6/664 , H05B6/705 , H05B6/72 , H05B2206/044 , Y02B40/143 , Y02B40/146
摘要： In a solid-state heating system, once a load with specific load characteristics has been placed in a heating cavity, a processing unit produces control signals that indicate an excitation signal frequency and one or more phase shifts, which constitute a combination of parameter values. Multiple microwave generation modules produce RF excitation signals characterized by the frequency and the phase shift(s). Multiple microwave energy radiators radiate, into the heating cavity, electromagnetic energy corresponding to RF excitation signals received from the microwave generation modules. Power detection circuitry takes reflected RF power measurements, and the processing unit determines a reflected power indication based on the measurements. The process is repeated for different combinations of the parameter values, and an acceptable combination of parameter values is determined and stored in a memory of the heating system. Acceptable combinations of parameter values similarly may be determined and stored for other loads with different load characteristics.
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公开(公告)号：US20180359822A1
公开(公告)日：2018-12-13
申请号：US15780264
申请日：2016-11-28
发明人： Claudio Mazzon
CPC分类号： H05B6/6482 , H05B6/70 , H05B6/72
摘要： The present invention relates to a microwave oven, in particular for a domestic appliance. The microwave oven comprises an oven cavity (14) at least partially enclosed by a cavity wall (16). The microwave oven comprises a microwave generator (10), in particular a magnetron (10), arranged out of the oven cavity (14). A matching section (18) is interconnected between the magnetron (10) and the cavity wall (16). The matching section (18) covers an opening in the cavity wall (16). A magnetron antenna (12) extends from the microwave generator (10) into the matching section (18). At least one antenna extension (20) is arranged inside the oven cavity (14). The antenna extension (20) penetrates the opening in the cavity wall (16). The antenna extension (20) is electrically connected to the magnetron antenna (12).
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公开(公告)号：US20180256251A1
公开(公告)日：2018-09-13
申请号：US15454218
申请日：2017-03-09
发明人： Susan C. Hagness , Nader Behdad , Hung Thanh Luyen
CPC分类号： A61B18/1815 , A61B2018/00577 , A61B2018/1838 , A61B2018/1861 , A61B2018/1892 , H05B6/72
摘要： A balun includes a center conductor, a dielectric material, a tapered wall, a ring, and a prong. The center conductor extends a length of the balun. The dielectric material surrounds the center conductor along the length of the balun. The tapered wall forms a portion of a tube between a first wall and a second wall. The first wall is opposite the second wall. The tapered wall is formed of a conductive material. The portion of the tube forms a slot exposing the dielectric material. The ring connects to the second wall of the tapered wall and is formed of the conductive material. The ring forms a tube surrounding the center conductor and the dielectric material. The prong connects to the ring to extend toward the first wall and is formed of the conductive material. The prong extends over a portion of the dielectric material exposed by the slot.
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公开(公告)号：US20180153005A1
公开(公告)日：2018-05-31
申请号：US15836637
申请日：2017-12-08
发明人： Dingyuan PENG , Maoshun CHEN , Xiangwei TANG , Chun LUAN , Xuan WANG , Minyong LIU
CPC分类号： H05B6/80 , A47J27/002 , A47J37/0629 , H05B6/70 , H05B6/72
摘要： Provided is a microwave rice cooker, comprising a cavity structure, a door assembly and an inner pot (20). The cavity structure comprises a microwave transmitting mechanism, a cavity (2) provided with a cylindrical cooking chamber therein, and a top cap (1) and a bottom cap (5) located at two ends of the cooking chamber respectively. The bottom cap (5) closes the cooking chamber at the bottom. A top opening of the cooking chamber is formed on the top cap (1). The inner pot (20) can be put into or taken out of the cooking chamber through the top opening. The door assembly is mounted on the top cap (1) in an openable and closable manner so as to open or close the cooking chamber from the top. The microwave transmitting mechanism is mounted at the bottom of the bottom cap (5) to feed microwaves into the cooking chamber from the bottom. The microwave rice cooker achieves a two-in-one function of a microwave oven and a rice cooker.
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