Devices With Radio-Frequency Printed Circuits

    公开(公告)号:US20190261509A1

    公开(公告)日:2019-08-22

    申请号:US16212453

    申请日:2018-12-06

    Applicant: Apple Inc.

    Abstract: Dielectric such as polyether ether ketone may be used in forming radio-frequency flexible printed circuits. Filler may be incorporated into the dielectric to adjust the coefficient of thermal expansion of the flexible printed circuit. One or more layers of the flexible printed circuit may be unfilled and one or more layers of the flexible printed circuit may be filled. Antennas may be formed from metal traces on the flexible printed circuit, metal electronic device housing structures, or other conductive structures. A transmission line on the flexible printed circuit may couple radio-frequency transceiver circuitry in an electronic device to an antenna. A flexible printed circuit may have a portion with enhanced bendability in a location that overlaps a bend region. The enhanced bendability region may have less filler than other portions of the flexible printed circuit.

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