Handheld electronic devices with isolated antennas

    公开(公告)号:AU2008205145A1

    公开(公告)日:2008-07-17

    申请号:AU2008205145

    申请日:2008-01-03

    Applicant: APPLE INC

    Abstract: Handheld electronic devices are provided that contain wireless communications circuitry having at least first and second antennas. An antenna isolation element reduces signal interference between the antennas, so that the antennas may be used in close proximity to each other. A planar ground element may be used as a ground by the first and second antennas. The first antenna may be formed using. a hybrid planar-inverted-F and slot arrangement in which a planar resonating element is located above a rectangular slot in the planar ground element. The second antenna may be formed from an L-shaped strip. The planar resonating element of the first antenna may have first and second arms. The first arm may resonate at a common frequency with the second antenna and may serve as the isolation element. The second arm may resonate at approximately the same frequency as the slot portion of the hybrid antenna.

    Antennas mounted under dielectric plates

    公开(公告)号:AU2011293808A1

    公开(公告)日:2013-02-21

    申请号:AU2011293808

    申请日:2011-07-05

    Applicant: APPLE INC

    Abstract: Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio -frequency transceiver circuitry and antenna structures. The antenna structures may contain antenna resonating elements and antenna ground elements. Antenna resonating elements may be formed from patterned conductive traces on substrates such as flex circuit substrates. Antenna ground elements may be formed from conductive device structures such as metal housing walls. Support and biasing structures such as dielectric support members and layer of foam may be used to support and bias antenna resonating elements against planar device structures. The planar device structures against which the antenna resonating elements are biased may be planar dielectric members such as transparent layers of display cover glass or other planar structures. Adhesive may be interposed between the planar structures and the antenna resonating elements.

    Tunable antenna system with receiver diversity

    公开(公告)号:AU2012200978A1

    公开(公告)日:2012-09-27

    申请号:AU2012200978

    申请日:2012-02-20

    Applicant: APPLE INC

    Abstract: Abstract of the Disclosure A wireless electronic device may include antenna structures and antenna tuning circuitry. The device may include a display mounted within a housing. A peripheral conductive member may run around the edges of the display and housing. Dielectric-filled gaps may divide the peripheral conductive member into individual segments. A ground plane may be formed within the housing. The ground plane and the segments of the peripheral conductive member may form antennas in upper and lower portions of the housing. The antenna tuning circuitry may include switchable inductor circuits and variable capacitor circuits for the upper and lower antennas. The switchable inductor circuits associated with the upper antenna may be tuned to provide coverage in at least two high-band frequency ranges of interest, whereas the variable capacitor circuits associated with the upper antenna may be tuned to provide coverage in at least two low-band frequency ranges of interest.

    Multi-element antenna structure with wrapped substrate

    公开(公告)号:AU2012200891A1

    公开(公告)日:2012-09-20

    申请号:AU2012200891

    申请日:2012-02-16

    Applicant: APPLE INC

    Abstract: Abstract of the Disclosure Antennas are provided for electronic devices such as portable computers. Multiple resonating elements may be formed on a flexible antenna resonating element substrate. The flexible antenna resonating element substrate may have a 5 first antenna resonating element at one end and a second antenna resonating element at an opposing end. The flexible antenna resonating substrate may be wrapped around a dielectric carrier and mounted within an electronic device under an inactive display region and above a dielectric 10 housing window. Conductive structures such as conductive housing structures may form antenna ground. The resonating elements and antenna ground may form first and second antennas. A parasitic antenna resonating element may form part of the first antenna. 52 -- ~- ------ ----------- --- ~ ! ! 58

    Antennas for handheld electronic devices with conductive bezels

    公开(公告)号:GB2463179B

    公开(公告)日:2011-11-09

    申请号:GB0920735

    申请日:2008-03-05

    Applicant: APPLE INC

    Abstract: A handheld electronic device may be provided that contains wireless communications circuitry. The handheld electronic device may have a housing and a display. The display may be attached to the housing using a conductive bezel. The handheld electronic device may have one or more antennas for supporting wireless communications. A ground plane in the handheld electronic device may serve as ground for one or more of the antennas. The ground plane and bezel may define an opening. A rectangular slot antenna or other suitable slot antenna may be formed from or within the opening. One or more antenna resonating elements may be formed above the slot. An electrical switch that bridges the slot may be used to modify the perimeter of the slot so as to tune the communications bands of the handheld electronic device.

    CAVITY-BACKED ANTENNA FOR TABLET DEVICE

    公开(公告)号:CA2770447A1

    公开(公告)日:2011-03-10

    申请号:CA2770447

    申请日:2010-06-22

    Applicant: APPLE INC

    Abstract: An electronic device may have a cavity antenna. The cavity antenna may have a logo-shaped dielectric window. An antenna resonating element for the cavity antenna may be formed from conductive traces on a printed circuit board. An antenna resonating element may be formed from the traces. The antenna resonating element may be mounted on an antenna support structure. A conductive cavity structure for the cavity antenna may have a planar lip that is mounted flush with an interior surface of a conductive housing wall. The cavity structure may have more than one depth. Shallower planar portions of the cavity structure may lie in a plane. The antenna resonating element may be located between the plane of the shallow cavity walls and an external surface of the conductive housing wall.

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