Electronic device having multiband antenna with embedded filter

    公开(公告)号:AU2017100104B4

    公开(公告)日:2017-10-05

    申请号:AU2017100104

    申请日:2017-01-27

    Applicant: APPLE INC

    Abstract: Abstract of the Disclosure An electronic device may have a display in a housing with a metal wall. An antenna may have an antenna ground formed from the wall and an antenna resonating element. Transceiver circuitry may be coupled to an antenna feed that extends between the antenna resonating element and the antenna ground. A return path may extend between the antenna resonating element and the antenna ground in parallel with the feed. The antenna resonating element may have segments that are coupled by a frequency dependent filter. At a first frequency, the filter may have a low impedance so that the antenna resonating element has a first effectively length. At a second frequency that is greater than the first frequency, the filter may have a high impedance so that the antenna resonating element has a second effective length that is shorter than the first effective length.

    Electronic device having multiband antenna with embedded filter

    公开(公告)号:AU2017100104A4

    公开(公告)日:2017-03-02

    申请号:AU2017100104

    申请日:2017-01-27

    Applicant: APPLE INC

    Abstract: Abstract of the Disclosure An electronic device may have a display in a housing with a metal wall. An antenna may have an antenna ground formed from the wall and an antenna resonating element. Transceiver circuitry may be coupled to an antenna feed that extends between the antenna resonating element and the antenna ground. A return path may extend between the antenna resonating element and the antenna ground in parallel with the feed. The antenna resonating element may have segments that are coupled by a frequency dependent filter. At a first frequency, the filter may have a low impedance so that the antenna resonating element has a first effectively length. At a second frequency that is greater than the first frequency, the filter may have a high impedance so that the antenna resonating element has a second effective length that is shorter than the first effective length. STORAGE AND PROCESSING 30 INPUT-OUTPUT CIRCUITRY INPUT-OUTPUT DEVICES (E.G., BUTTONS, TRACKPAD, 32 ACCELEROMETER, DISPLAY, MICROPHONE, SPEAKER, STATUS INDICATOR LIGHTS, ETC.) WIRELESS TRANSCEIVER 90 34

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