Reconfigurable Antenna and Communications Device

    公开(公告)号:US20220158344A1

    公开(公告)日:2022-05-19

    申请号:US17526594

    申请日:2021-11-15

    摘要: A reconfigurable antenna includes a first antenna and a second antenna. The first antenna is an omnidirectional antenna, and the second antenna surrounds the first antenna. The second antenna includes a plurality of antenna element groups. Each antenna element group includes a transmission cable, a switch, a first antenna element, and a second antenna element. The transmission cable is connected to the first antenna element and the second antenna element. The transmission cable is connected to a feedpoint. The switch is connected to a first point and a second point on the transmission cable. A sum of a length of antennas and transmission cables in an antenna element group is slightly greater than ½ wavelength (λ1), where λ1 is a wavelength of an electromagnetic wave on an operating frequency of the first antenna.

    Feed apparatus, dual-band microwave antenna, and dual-band antenna device

    公开(公告)号:US11139572B2

    公开(公告)日:2021-10-05

    申请号:US16735313

    申请日:2020-01-06

    摘要: This application provides a feed apparatus, a dual-band microwave antenna, and a dual-band antenna device. The feed apparatus includes a low-frequency feed and a high-frequency feed. The high-frequency feed is embedded into the low-frequency feed. The low-frequency feed includes a plurality of low-frequency array elements arranged in an array. The high-frequency feed includes a plurality of high-frequency array elements arranged in an array. At least one high-frequency array element is embedded into the low-frequency array element, and the low-frequency array element and each high-frequency array element embedded into the low-frequency array element have a common waveguide wall.

    Antenna and wireless device
    4.
    发明授权

    公开(公告)号:US11217882B2

    公开(公告)日:2022-01-04

    申请号:US17226637

    申请日:2021-04-09

    IPC分类号: H01Q1/36 H01Q11/08

    摘要: An antenna includes a first helical arm and a second helical arm. The first helical arm is wound clockwise along a longitudinal direction of an axis of the antenna, and the second helical arm is wound counterclockwise along the longitudinal direction of the axis of the antenna. The second helical arm and the first helical arm form at least one intersecting point, a first feeding point is disposed on the first helical arm, a second feeding point is disposed on the second helical arm, the first feeding point and the second feeding point are two points symmetrical relative to the axis of the antenna, and any intersecting point of the at least one intersecting point further forms a third feeding point, where the first feeding point and the second feeding point are connected to a first feeding port, and the third feeding point is connected to a second feeding port.

    DATA TRANSMISSION METHOD, APPARATUS, AND SYSTEM

    公开(公告)号:US20190014194A1

    公开(公告)日:2019-01-10

    申请号:US16130692

    申请日:2018-09-13

    摘要: A method of data transmission includes: receiving a first packet, where the first packet includes first compressed data and a first check value, the first compressed data is obtained by compressing first data based on a first compression mode, the first check value is obtained by processing a second check value based on a first check algorithm, the second check value is obtained by processing the first compressed data based on a second check algorithm; obtaining a first check code by processing the first packet based on a third check algorithm; determining, according to a correspondence between the first check code and the first compression mode, that the first compression mode is a compression mode used when the first data is compressed; and obtaining the first data by decompressing, based on a first decompression mode corresponding to the first compression mode, the first compressed data included in the first packet.

    Antenna and Wireless Device
    6.
    发明申请

    公开(公告)号:US20210234262A1

    公开(公告)日:2021-07-29

    申请号:US17226637

    申请日:2021-04-09

    IPC分类号: H01Q1/36

    摘要: An antenna includes a first helical arm and a second helical arm. The first helical arm is wound clockwise along a longitudinal direction of an axis of the antenna, and the second helical arm is wound counterclockwise along the longitudinal direction of the axis of the antenna. The second helical arm and the first helical arm form at least one intersecting point, a first feeding point is disposed on the first helical arm, a second feeding point is disposed on the second helical arm, the first feeding point and the second feeding point are two points symmetrical relative to the axis of the antenna, and any intersecting point of the at least one intersecting point further forms a third feeding point, where the first feeding point and the second feeding point are connected to a first feeding port, and the third feeding point is connected to a second feeding port.

    Frequency selective surface
    7.
    发明授权

    公开(公告)号:US10826189B2

    公开(公告)日:2020-11-03

    申请号:US16232053

    申请日:2018-12-26

    发明人: Xin Luo Yi Chen Kun Li

    摘要: Embodiments provide a frequency selective surface (FSS). The FSS includes uniformly arranged FSS units. Each FSS unit includes a dielectric slab, a cross-shaped metal patch, and N square-ring metal patches. The cross-shaped metal patch is adhered to a first surface of the dielectric slab, and divides the first surface of the dielectric slab into four parts. Each part has a same size and a same quantity of the square-ring metal patches. The N square-ring metal patches are adhered to the first surface of the dielectric slab, and are arranged uniformly, and N is a positive integer power of 4. Lengths of the cross-shaped metal patch in two mutually perpendicular directions are equal, and both a length in each direction and a width of a gap between adjacent patches need to meet a specific condition.

    Antenna and wireless device
    8.
    发明授权

    公开(公告)号:US12027769B2

    公开(公告)日:2024-07-02

    申请号:US17722811

    申请日:2022-04-18

    IPC分类号: H01Q19/10 H01P1/185

    CPC分类号: H01Q19/106 H01P1/185

    摘要: An antenna has a reflector and an active element. The reflector includes a multi-segment metal structure having a length within a first value range. The multi-segment metal structure includes a first metal structure connected to a second metal structure. A PIN diode is disposed on the first metal structure. The first metal structure is parallel to a polarization direction of the active element. The second metal structure is perpendicular to the first metal structure.

    Beam diversity by smart antenna with passive elements

    公开(公告)号:US11978963B2

    公开(公告)日:2024-05-07

    申请号:US17697996

    申请日:2022-03-18

    CPC分类号: H01Q21/205 H01Q9/16 H01Q19/24

    摘要: An antenna device includes a plurality of dipole antennas and a port. Each of the dipole antennas is connected to the port. The dipole antennas are arranged around the port. Each of the dipole antennas comprises two ends. The device further includes a plurality of passive elements. The ends of the dipole antennas and the passive elements are interchangeably arranged around the port such that each of the passive elements is situated between ends of two different antennas from the plurality of dipole antennas. One or more switches are configured to switch between an omnidirectional state, in which the ends of the dipole antennas are not connected to the plurality of passive elements, and a directional state, in which at least one end of one of the passive elements is connected to at least one end of one of the antennas.

    Power Divider and Electronic Device
    10.
    发明公开

    公开(公告)号:US20230155271A1

    公开(公告)日:2023-05-18

    申请号:US17988566

    申请日:2022-11-16

    发明人: Min Yu Xin Luo Yi Chen

    IPC分类号: H01P5/16 H01P3/08

    CPC分类号: H01P5/16 H01P3/08

    摘要: A power divider and an electronic device are provided. The power divider includes: a main port having an input characteristic admittance; a first output port having a first characteristic admittance; a second output port having a second characteristic admittance, where the second and the first characteristic admittances have a predetermined ratio relationship; a first adjustment branch coupled between the main port and the first output port; and a second adjustment branch coupled between the main port and the second output port. The input characteristic admittance is a sum of admittances presented by the first and second adjustment branches at the main port. The admittance presented by the first adjustment branch at the main port and the admittance presented by the second adjustment branch at the main port are adjustable and the input characteristic admittance is enabled to be equal to a sum of the first and the second characteristic admittances.