Communication device
    2.
    发明授权

    公开(公告)号:US12041711B2

    公开(公告)日:2024-07-16

    申请号:US17802697

    申请日:2021-03-09

    IPC分类号: H05K1/00 H05K1/02

    摘要: A communication device includes a communication connector, a communication control circuit, and a common mode filter. The communication control circuit controls communication that is established by way of the communication connector. The common mode filter is connected to each of the communication control circuit and the communication connector to relay the communication. Letting a wavelength corresponding to a clock frequency of an electric signal sent out from the communication control circuit be denoted as λ, an electrical length of a signal path at which resonance is produced by a reflected wave resulting from reflection of the electric signal by the common mode filter is closer to an even multiple of λ/2 than to an odd multiple thereof.

    Electromagnetic interference (EMI) filter unit and associated methods

    公开(公告)号:US11839028B2

    公开(公告)日:2023-12-05

    申请号:US17464309

    申请日:2021-09-01

    申请人: Sidus Space, Inc.

    发明人: Valerij Ojdanic

    IPC分类号: H05K1/18 B64D43/00 H05K7/14

    摘要: A filter unit is provided to retrofit within signal lines that couple analog cockpit gauges to transducers in rotorcraft systems. The filter unit may include a housing assembly and an electromagnetic interference (EMI) filter assembly housed therein. The filter assembly may include a printed circuit board (PCB) having conductive PCB traces and a signal line input connector configured to connect to multiple transducer signal lines. The filter assembly may also include a signal line output connector configured to connect to multiple analog cockpit gauge signal lines and a plurality of common mode chokes electrically connected between the signal line input connector and the signal line output connector. Each common mode choke may be positioned on the PCB so that it does not electrically/magnetically interfere with the other common mode chokes of the plurality of common mode chokes.

    HIGH-FREQUENCY MODULE AND COMMUNICATION DEVICE

    公开(公告)号:US20230189432A1

    公开(公告)日:2023-06-15

    申请号:US18164707

    申请日:2023-02-06

    发明人: Yoichi SAWADA

    IPC分类号: H05K1/02

    摘要: A high-frequency module includes a module substrate having main surfaces, one or more module components disposed on the main surface, a resin member covering the main surface, and a metal shield layer covering a top surface of each of the resin member and the one or more module components, and set to ground potential. A sub-module component, which is one of the one or more module components, has a sub-module substrate having main surfaces, a first circuit component disposed on the main surface, one or more second circuit components disposed on the main surface, a resin member covering the main surface, and a side surface shield layer covering a side surface of each of the resin member and the sub-module substrate, and set to the ground potential. An end surface on a top surface side of the side surface shield layer contacts the metal shield layer.