WAVEGUIDE TERMINATION ARRANGEMENTS FOR ARRAY ANTENNAS

    公开(公告)号:US20240364017A1

    公开(公告)日:2024-10-31

    申请号:US18565898

    申请日:2022-05-31

    申请人: GAPWAVES AB

    发明人: Carlo BENCIVENNI

    IPC分类号: H01Q21/00 H01P3/12 H01Q21/06

    摘要: An array antenna (100) having a layered configuration. The array antenna comprises a radiation layer (110) comprising a plurality of radiation elements (111) and a distribution layer (120) facing the radiation layer. The distribution layer is arranged to distribute a radio frequency, RF, signal to the plurality of radiation elements. The distribution layer comprises at least one distribution layer feed (121) and at least one first waveguide (122) arranged to guide the RF signal between at least one distribution layer feed and at least one radiation element. The array antenna further comprises at least a second waveguide (130) connected to at least one distribution layer feed (121). Any of the first (122) and the second (130) waveguides comprises plastics with a first type of surface treatment (313), where the first type of surface treatment comprising metallization. At least one radiation element is a dummy element terminated by an attenuation section, where the attenuation section is arranged on any of the waveguides (122, 130) connected to the dummy element and that comprises plastics. The attenuation section comprises a second type of surface treatment (314) arranged to attenuate the RF signal.

    Scalable modular antenna arrangement

    公开(公告)号:US11978957B2

    公开(公告)日:2024-05-07

    申请号:US17796435

    申请日:2021-01-12

    申请人: GAPWAVES AB

    摘要: An antenna arrangement having a stacked layered structure. The antenna arrangement includes a radiation layer including one or more radiation elements, and a distribution layer facing the radiation layer. The distribution layer is arranged to distribute a radio frequency signal to the one or more radiation elements. The distribution layer includes at least one distribution layer feed and a first electromagnetic bandgap, EBG, structure arranged to form at least one first waveguide intermediate the distribution layer and the radiation layer. The first EBG structure is also arranged to prevent electromagnetic propagation in a frequency band of operation from propagating from the at least one first waveguide in directions other than through the at least one distribution layer feed and the one or more radiation elements. The distribution layer includes a plurality of distribution modules and a positioning structure, the positioning structure is arranged to fix the distribution modules in position.

    HIGH FREQUENCY FILTER AND PHASED ARRAY ANTENNA COMPRISING SUCH A HIGH FREQUENCY FILTER

    公开(公告)号:US20210305667A1

    公开(公告)日:2021-09-30

    申请号:US17271235

    申请日:2019-08-28

    申请人: GAPWAVES AB

    发明人: Carlo BENCIVENNI

    IPC分类号: H01P1/207

    摘要: A high frequency filter comprising a waveguide and at least one resonant cavity is disclosed. The waveguide is a so-called gap waveguide, and comprises a metal or metallized base layer, a lid arranged in parallel with said metal or metallized baser layer, a waveguiding structure in the form of a ridge, a groove or a microstrip line, and an artificial magnetic conductor arranged on said base layer, between the baser layer and the lid, and arranged aligned with said waveguiding structure to prevent waveguide propagation along other directions than along said waveguide structure. The filter further comprises at least one resonant cavity arranged within said baser layer, and extending essentially perpendicular to a plane of said baser layer. The filter may e.g. be used in a phased array antenna.

    Phased array antenna
    4.
    发明授权

    公开(公告)号:US11121475B2

    公开(公告)日:2021-09-14

    申请号:US16646282

    申请日:2018-09-24

    申请人: Gapwaves AB

    摘要: A phased array is disclosed, including: a base layer including a substrate with a plurality of protruding posts, for stopping wave propagation along the base layer, and a printed circuit board (PCB) arranged on the base layer, and including at least one phased array radio frequency (RF) integrated circuit (IC) on a first side of the PCB facing the base layer and the protruding posts. The PCB further includes feeds for transferring of RF signals from the phased array RF IC(s) to an opposite second side of the PCB. A radiating layer, including a plurality of radiating elements for transmitting and/or receiving RF signals from the phased array antenna is also provided, together with a feeding layer for transfer of RF signals, arranged between the feeds of the PCB on the second side and the radiating elements of the radiating layer.

    Packaging structure comprising at least one transition forming a contactless interface

    公开(公告)号:US10811373B2

    公开(公告)日:2020-10-20

    申请号:US16339011

    申请日:2016-10-05

    申请人: Gapwaves AB

    IPC分类号: H01L23/66

    摘要: A packaging structure (100) having a split-block assembly with a first and a second conducting block section (10A,20A) and at least one transition between a first planar transmission line (2A) and a second transmission line (11A), and one or more input/output ports. The first transmission line (2A) is arranged on a substrate disposed on the first conducting block section (10A) and has a coupling section (3A), a cavity (4A) with a cavity opening in an upper surface of the first conducting block section (10A), and the second transmission line (11A) being in line with the first transmission line (2A) and located on an opposite side of the opening of the cavity (4A).

    Antenna arrangements and microwave devices with improved attachment means

    公开(公告)号:US11978956B2

    公开(公告)日:2024-05-07

    申请号:US17796362

    申请日:2020-11-20

    申请人: Gapwaves AB

    摘要: An antenna arrangement having a stacked layered structure. The antenna arrangement includes a radiation layer including one or more radiation elements, and a distribution layer facing the radiation layer. The distribution layer is arranged to distribute a radio frequency signal to the one or more radiation elements. The distribution layer includes at least one distribution layer feed. Any of the distribution layer and the radiation layer includes a first electromagnetic bandgap, EBG, structure arranged to form at least one first waveguide intermediate the distribution layer and the radiation layer. The first EBG structure is arranged to prevent electromagnetic radiation in a frequency band of operation from propagating from the first waveguide in directions other than through the distribution layer feed and the one or more radiation elements. The radiation layer and the distribution layer are attached to each other with one or more fastening members including respective deformable tails.

    Contactless microstrip to waveguide transition

    公开(公告)号:US11959954B2

    公开(公告)日:2024-04-16

    申请号:US17285125

    申请日:2019-09-19

    申请人: GAPWAVES AB

    摘要: A microstrip to waveguide transition comprising a waveguide module and a section of printed circuit board (PCB). The waveguide module comprises a waveguide aperture and a repetitive structure, the waveguide aperture being arranged extending through the module for attaching a waveguide to an external side of the module, the repetitive structure comprising a plurality of protruding elements arranged to surround the waveguide aperture on an internal side of the module and to define a passage into the waveguide aperture on the internal side, wherein the repetitive structure is configured to attenuate electromagnetic signal propagation in a frequency band past the repetitive structure while allowing propagation via the passage, the transition further comprising a PCB with a patch antenna connected to a transmission line and arranged to face the passage into the waveguide aperture.

    Calibration arrangement and a method for a microwave analyzing or measuring instrument

    公开(公告)号:US10534061B2

    公开(公告)日:2020-01-14

    申请号:US15565163

    申请日:2016-04-04

    申请人: Gapwaves AB

    IPC分类号: G01R31/00 G01R35/00 G01R27/28

    摘要: An apparatus for calibration of an electronic instrument, such as a vector network analyzer, includes a number of calibrator connector elements for connection to the instrument, and a plate element including a plurality of calibration waveguide structures. The plate element has conductive surfaces, and the calibrator connector elements and conductive surfaces include periodic structures disposed with respect to each other such that gaps are formed between them. An interface enables interconnection of a waveguide of a calibrator connector element, a waveguide of the instrument, and a calibration waveguide structure. The apparatus includes a driving unit and controller for moving the plate element and/or the calibrator connector element to connect the calibrator connector element to different calibration waveguide structures.