公开(公告)号：US20230140692A1

公开(公告)日：2023-05-04

申请号：US18089122

申请日：2022-12-27

申请人： Trustees of Boston University

发明人： Chen Yang ,  Ji-Xin Cheng ,  Nan Zheng ,  Yueming Li ,  Ying Jiang ,  Lu Lan ,  Carolyn Marar

IPC分类号： A61B18/18 ,  H01P7/08

摘要： A system for neuromodulation includes a split-ring resonator (SRR) comprising a resonance circuit, the SRR being implantable in a cranial target site and a source of microwave signals, wherein the microwave signals are deliverable wirelessly to couple with the SRR to produce a localized electrical field, wherein the localized electrical field inhibits one or more neurons at the cranial target site with submillimeter spatial precision.

公开(公告)号：US20230139057A1

公开(公告)日：2023-05-04

申请号：US17690802

申请日：2022-03-09

申请人： ENGIN-IC, Inc.

发明人： Stephen R. Nelson

IPC分类号： H03F3/60 ,  H03F1/34 ,  H03F3/195 ,  H01L29/772 ,  H01P5/08 ,  H01P3/08 ,  H03F1/56 ,  H01P3/02 ,  H03F3/24

摘要： According to an embodiment of the disclosure, a series or source feedback is provided to a solid-state power amplifier to achieve improved amplifier output power, good impedance match, and low voltage standing wave ratio (VSWR). In an embodiment, an inductive element is coupled to the source of the power amplifier transistor to serve as a series or source feedback for the transistor. In an embodiment, a high-impedance microstrip is provided as an inductive element coupled to the source of the transistor. In an embodiment, a series or source feedback is provided to each amplifier in a multistage amplifier circuit. In an embodiment, a greater series or source feedback is provided at a later stage of a multistage amplifier circuit, whereas a smaller series or source feedback is provided at an earlier stage of the multistage amplifier circuit.

公开(公告)号：US20230136471A1

公开(公告)日：2023-05-04

申请号：US17514011

申请日：2021-10-29

申请人： Dell Products L.P.

发明人： Bhyrav Mutnury ,  Sandor Farkas

IPC分类号： H01P1/20 ,  H01P11/00

摘要： A system for preventing crosstalk between adjacent channels comprises a crossover connector positioned along a length of one channel such that a portion of a positive trace for a first channel is positioned adjacent to a positive trace of a positive trace of an adjacent channel. The position of the crossover connector is based on preventing crosstalk and crossover connectors on adjacent channels may be staggered to further prevent crosstalk. A crossover connector may be based on capacitors or resistors to prevent crosstalk.

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

IPC分类号： H01P1/06 ,  H05K1/02 ,  H01F38/18 ,  H01R39/08

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.

公开(公告)号：US11635461B2

公开(公告)日：2023-04-25

申请号：US17115236

申请日：2020-12-08

申请人： NXP B.V.

发明人： Abdellatif Zanati ,  Henrik Asendorf ,  Jan-Peter Schat ,  Nicolas Lamielle

IPC分类号： G01R31/311 ,  H01P3/12 ,  H01Q1/22

摘要： A test apparatus and method for testing a semiconductor device. The semiconductor device includes an integrated circuit and a plurality of external radiating elements located at a surface of the device. The external radiating elements include at least one transmit element and receive element. The test apparatus includes a plunger. The plunger includes a dielectric portion having a surface for placing against the surface of the device. The plunger also includes at least one waveguide. Each waveguide extends through the plunger for routing electromagnetic radiation transmitted by one of the transmit elements of the device to one of the receive elements of the device. Each waveguide comprises a plurality of waveguide openings for coupling electromagnetically to corresponding radiating elements of the device. The dielectric portion is configured to provide a matched interface for the electromagnetic coupling of the waveguide openings to the plurality of external radiating elements of the device.

公开(公告)号：US20230122182A1

公开(公告)日：2023-04-20

申请号：US17853540

申请日：2022-06-29

申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY

发明人： Philip CAMAYD-MUNOZ ,  Conner BALLEW ,  Gregory ROBERTS ,  Andrei FARAON

IPC分类号： G02B27/10 ,  H01L27/146 ,  H01P1/207 ,  G02B5/02

摘要： Methods and devices to build and use multi-functional scattering structures. The disclosed methods and devices account for multiple target functions and can be implemented using fabrication methods based on two-photon polymerization or multi-layer lithography. Exemplary devices functioning as wave splitters are also described. Results confirming the performance and benefits of the disclosed teachings are also described.

公开(公告)号：US20230119711A1

公开(公告)日：2023-04-20

申请号：US17813129

申请日：2022-07-18

申请人： Aptiv Technologies Limited

发明人： Yuxiao He ,  Kenneth Sean Ayotte ,  Kevin Paul McReynolds

IPC分类号： H01Q7/00 ,  H05K1/02 ,  H01P3/16

摘要： This document describes techniques, apparatuses, and systems for an antenna-to-printed circuit board (PCB) transition. An apparatus (e.g., a radar system) may include an MMIC or other processor to generate electromagnetic signals. The apparatus can include a PCB that includes multiple layers, a first surface, and a second surface that is opposite and in parallel with the first surface. The PCB can also include a dielectric-filled portion formed between the first surface and second surface. The apparatus can also include a conductive loop located on the first surface and connected to a pair of lines. The apparatus can further include a transition channel mounted on the first surface and positioned over the dielectric-filled portion. The described transition can reduce manufacturing costs and board sizes, reduce energy losses, and support a wide bandwidth.

公开(公告)号：US20230118076A1

公开(公告)日：2023-04-20

申请号：US17955510

申请日：2022-09-28

申请人： Innolux Corporation

发明人： Yan-Zheng Wu ,  Ming-Sheng Lai

IPC分类号： H03H7/00 ,  H01P3/12 ,  H03C3/00

摘要： An electronic device, including a substrate and multiple modulation units, is provided. The modulation units are disposed on the substrate. Each modulation unit includes a first electronic element, a second electronic element, a first signal line, a second signal line, and a third signal line. The first signal line provides a first voltage to the first electronic element. The second signal line provides a second voltage to the second electronic element. The third signal line provides a third voltage to the first electronic element and/or the second electronic element. The first voltage is different from the second voltage, and the third voltage is different from the first voltage and/or the second voltage.

公开(公告)号：US11631927B2

公开(公告)日：2023-04-18

申请号：US16458004

申请日：2019-06-29

申请人： Amber Precision Instruments, Inc.

发明人： Hamed Kajbaf

IPC分类号： H01P3/12 ,  H01P1/16 ,  H01P5/08 ,  H01P11/00

摘要： Various aspects directed towards an integrated transverse electromagnetic (TEM) transmission line structure for probe calibration are disclosed. In one example, the integrated TEM transmission line structure includes a printed circuit board (PCB) and an air-dielectric coplanar waveguide (CPW). For this example, the air-dielectric CPW includes an air trace in a cutout slot of the PCB. In another example, a method is disclosed, which includes forming an air-dielectric CPW on a PCB in which the air-dielectric CPW includes an air trace in a cutout slot of the PCB. In a further example, an integrated TEM transmission line structure includes an air-dielectric CPW with an air trace. For this example, a first connector is electrically coupled to a first end of the air-dielectric CPW, and a second connector is electrically coupled to a second end of the air-dielectric CPW.

公开(公告)号：US20230113980A1

公开(公告)日：2023-04-13

申请号：US17819140

申请日：2022-08-11

申请人： Murata Manufacturing Co., Ltd.

发明人： Koji FURUTANI

IPC分类号： H01P5/18

摘要： A directional coupler includes a substrate, a main line, a first sub-line, and a ground conductor. The main line includes a first conductor line and a second conductor line electrically connected to each other. The first sub-line includes a third conductor line. The first conductor line and the second conductor line are able to be electromagnetically coupled to the third conductor line. The first conductor line has a first edge and a second edge. The second conductor line has a third edge and a fourth edge. The third conductor line has a fifth edge and a sixth edge. The first conductor line, the second conductor line, and the third conductor line are arranged in such a manner that the first edge, the fifth edge, the third edge, the second edge, the sixth edge, and the fourth edge are arranged in this order when the substrate is viewed in plan.