Antenna module and communication device

    公开(公告)号:US12003014B2

    公开(公告)日:2024-06-04

    申请号:US17141302

    申请日:2021-01-05

    发明人: Ryuken Mizunuma

    摘要: An antenna module includes a substrate that includes a first dielectric layer and a second dielectric layer with a dielectric constant different from a dielectric constant of the first dielectric layer, a first antenna that is disposed on or in the first dielectric layer and transmits and receives a signal in a first frequency band, a second antenna that is disposed on or in the second dielectric layer and transmits and receives a signal in a second frequency band which is a lower frequency band than the first frequency band, and a radio frequency circuit that is disposed on or in the substrate and is electrically connected to the first antenna.

    Antenna module
    2.
    发明授权

    公开(公告)号:US11848485B2

    公开(公告)日:2023-12-19

    申请号:US17125538

    申请日:2020-12-17

    摘要: An antenna module includes a feeding end, a first radiator, a second radiator, a third radiator, and a ground structure. The first radiator excites a first frequency and a second frequency. The second radiator extends from the first radiator and excites a third frequency with a part of the first radiator. The third radiator extends from the first radiator and excites a fourth frequency with a part of the first radiator. The ground structure includes a main ground surface and an extending portion extending from the main ground surface. The main ground surface is located below the feeding end, and the extending portion extends from the main ground surface to a bottom of the first radiator and is apart from the first radiator. An extending direction of a portion of the first radiator above the extending portion is orthogonal to an extending direction of the extending portion.

    Antenna structure
    6.
    发明授权

    公开(公告)号:US10056696B2

    公开(公告)日:2018-08-21

    申请号:US15361243

    申请日:2016-11-25

    摘要: An antenna structure includes a metal piece, a dielectric substrate, a feeding radiation element, a grounding radiation element, and a grounding metal element. The metal piece has a slot. A lower surface of the dielectric substrate is adjacent to the slot of the metal piece. The feeding radiation element is disposed on an upper surface of the dielectric substrate, and is coupled to a positive electrode of a signal source. The grounding radiation element is disposed on the upper surface of the dielectric substrate, and is coupled to a negative electrode of the signal source. The grounding radiation element is coupled through the grounding metal element to the metal piece. At least one of the feeding radiation element and the grounding radiation element has a vertical projection which at least partially overlaps the slot of the metal piece.

    Multi-mode, multi-band antenna
    7.
    发明授权

    公开(公告)号:US10038235B2

    公开(公告)日:2018-07-31

    申请号:US14197166

    申请日:2014-03-04

    申请人: Maxtena, Inc.

    摘要: A multi-mode, multi-band antenna system for a handheld wireless device includes a Quadrafilar Helix Antenna (QHA) that radiates circularly polarized waves is fed by a co-axial cable. The co-axial cable is also used in combination with the QHA as a monopole antenna. Because of the distinct electromagnetic field patterns of the QHA versus the combination of the QHA and the co-axial cable operating as a monopole antenna, the cross coupling between the two modes is low. In certain embodiments the co-axial cable can itself be formed into a helix in order to reduce the physical length of the antenna system while maintaining an electrical length desired to supported certain frequency bands in the monopole mode. According to certain embodiments a post which also serves to increase the effective electric length of the co-axial cable and thereby support a lower frequency band is provided along the centerline of the QHA.