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公开(公告)号：US12034197B2
公开(公告)日：2024-07-09
申请号：US17853232
申请日：2022-06-29
发明人： Peiyu Liang , Tianbo Liu , Mengtian Mu
摘要： An electronic device includes a first body and a second body rotatably connected relative to each other through a pivot shaft having a metal portion, the first body including a first motherboard, the second body including a second motherboard; and a radio-frequency transmission line including at least one band-shaped line segment and at least two coplanar waveguide segments, the band-shaped line segment being coupled to the coplanar waveguide segments, in which one band-shaped line segment is located between two coplanar waveguide segments in an extending direction of the radio-frequency transmission line, the one band-shaped line segment is coupled to the pivot shaft to retain stationary relative to the pivot shaft, and the coplanar waveguide segments are spaced apart from the metal portion. The radio-frequency transmission line has a first end coupled to the first motherboard, and a second end coupled to the second motherboard.
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公开(公告)号：US11990663B2
公开(公告)日：2024-05-21
申请号：US17583804
申请日：2022-01-25
摘要： Radio frequency (RF) switches are provided. An RF switch includes a first RF transmission line and a second RF transmission line that are capacitively coupled to each other. Moreover, the RF switch includes a third RF transmission line having a signal trace that is electrically isolated from the first and second RF transmission lines. Related methods of operating filter devices are also provided.
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公开(公告)号：US11695191B2
公开(公告)日：2023-07-04
申请号：US17050951
申请日：2019-04-26
发明人： Julien Tessier , Guillaume Prot , Denis Tuau
摘要： Apparatus for dual-band antenna and communications tower comprising such apparatus are provided. The apparatus comprises a first part (202) comprising first and second propagation paths configured to selectively propagate signals of a first frequency with either a first polarization state or a second polarization state, a transition part (204) rotatable between first and second transition positions to selectively propagate signals of a second frequency along the second signal path with the first polarisation state when in the first transition position and with the second polarisation state when in the second transition position and a rotator part rotatable between first and second rotator positions. Wherein, the rotator part is configured to orientate the polarisation of signals in the second signal path in order to couple the second signal path to an interface, and allow propagation of signals in the first signal path in either the first or second rotator positions.
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公开(公告)号：US11641049B2
公开(公告)日：2023-05-02
申请号：US17725329
申请日：2022-04-20
申请人： Schleifring GmbH
发明人： Nils Krumme , Ulrich Herrmann
摘要： A rotary joint includes a first part and a second part configured to rotate around a rotation axis against the first part. The first part has a first magnetic core and a capacitive data link component. The second part has a second magnetic core for coupling power with the a first magnetic core and a second capacitive data link component to transfer data from and/or to the first capacitive data link component. To weaken magnetic stray fields from the magnetic core, a resonant shield is provided outside the airgap between the magnetic cores. The resonant shield comprises an open ring-shaped structure, having two open ends which are connected by a capacitor to form a resonant circuit.
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公开(公告)号：US20220263208A1
公开(公告)日：2022-08-18
申请号：US17725329
申请日：2022-04-20
申请人： Schleifring GmbH
发明人： Nils KRUMME , Ulrich HERRMANN
摘要： A rotary joint includes a first part and a second part configured to rotate around a rotation axis against the first part. The first part has a first magnetic core and a capacitive data link component. The second part has a second magnetic core for coupling power with the a first magnetic core and a second capacitive data link component to transfer data from and/or to the first capacitive data link component. To weaken magnetic stray fields from the magnetic core, a resonant shield is provided outside the airgap between the magnetic cores. The resonant shield comprises an open ring-shaped structure, having two open ends which are connected by a capacitor to form a resonant circuit.
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公开(公告)号：US11407124B2
公开(公告)日：2022-08-09
申请号：US17093760
申请日：2020-11-10
发明人： Tomohisa Takai , Yoshihiko Takeuchi
摘要： A rotary joint according to an aspect of the present disclosure includes a first microstrip line, a second microstrip line, a transmitting circuit connected to one end of the first microstrip line and configured to output a communication signal, a transmitting-side terminator connected to the other end of the first microstrip line, a receiving-side terminator connected to one end of the second microstrip line, and a receiving circuit connected to the other end of the second microstrip line and configured to receive the communication signal, in which the first and second microstrip lines and are set along at least a part of a circular ring having a circumferential length equal to an integral multiple of a wavelength of a traveling wave with which the communication signal propagates through the microstrip lines.
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公开(公告)号：US11387917B2
公开(公告)日：2022-07-12
申请号：US17309190
申请日：2019-11-04
发明人： Herb Peyerl , Andrew Hookey , Terry Chepyha
摘要： A wireless slip ring, system and method for transmission of data across a rotatable junction can be provided to permit transmission of data from a fixed element to a rotating element across a rotary interface. The wireless slip ring can provide high bandwidth multi-channel data transmission, for example each channel can have a bandwidth greater than 1 gigabit per second. Each channel may include a plurality of input/output data streams that can be serialized by a digital electronic circuit for transmission across the slip ring and then deserialized into its respective data streams. The wireless slip ring can form an annular chamber to act as a wave guide for the wireless signal for providing a continuous conductive covering around the annular chamber to act as a faraday shield to contain radio frequency emissions and prevent external jamming.
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公开(公告)号：US11367935B2
公开(公告)日：2022-06-21
申请号：US16619026
申请日：2018-06-07
发明人： Rodolfo Ravanelli , Paolo Campana
摘要： The invention relates to a microwave circular polarizer including: a first outer conductor; a second outer conductor connected to the first outer conductor forming a first step discontinuity therewith; and a third outer conductor connected to the second outer conductor forming a second step discontinuity therewith. An inner conductor is provided which extends inside and is spaced apart from the first, second and third outer conductors. The first and second outer conductors are axially asymmetric with respect to the inner conductor, and the third outer conductor is axially symmetric with respect to the inner conductor. The microwave circular polarizer includes first and second rectangular waveguide ports in signal communication with an internal cavity through, respectively, a first rectangular aperture and a second rectangular aperture formed through the first outer conductor. The microwave circular polarizer further includes a first septum and a second septum.
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公开(公告)号：US11143823B2
公开(公告)日：2021-10-12
申请号：US16742897
申请日：2020-01-14
申请人： Princetel, Inc.
发明人： Boying B Zhang , Hong Zhang , Liangju Lu
摘要： The current disclosure shows a fiber optic slip ring with through bore, or an off-axis fiber optic rotary joint to provide transmission of optic data between mechanically rotational interface with a through bore. Said fiber optic slip ring with through bore may include a ring assembly and a brush block assembly within a rotor and a stator. Said ring assembly may include a ring, a ring holder and a fiber. Said brush block assembly may include a fiber brush, a brush block, an optic index matching fluid, and shaft seals. Said ring may be a donut-shaped waveguide with flat surface on one side. Said fiber brush may have an angled-surface, which is fully contacted with said flat surface on said ring at any time so that during the rotation of said rotor, the optic signal can be transmitted between said fiber and said fiber brush in either direction.
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公开(公告)号：US20210307822A1
公开(公告)日：2021-10-07
申请号：US17349483
申请日：2021-06-16
申请人： CREO MEDICAL LIMITED
发明人： Christopher HANCOCK , Steven MORRIS , Patrick BURN , Louis TURNER , George ULLRICH , David WEBB
摘要： Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative to the feed cable.
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