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公开(公告)号：US11380998B2
公开(公告)日：2022-07-05
申请号：US17022851
申请日：2020-09-16
申请人： Waymo LLC
发明人： Jamal Izadian
摘要： Example radar systems are presented herein. A radar system may include radiating elements configured to radiate electromagnetic energy and arranged symmetrically in a linear array. The radiating elements comprise a set of radiating doublets and a set of radiating singlets. The radar system also includes a waveguide configured to guide electromagnetic energy between each of the plurality of radiating elements and a waveguide feed. The waveguide feed is coupled to the second side of the waveguide at a center location between a first half of the plurality of radiating elements and a second half of the plurality of radiating elements. The waveguide feed is configured to transfer electromagnetic energy between the waveguide and a component external to the waveguides. The radar system may also include a power dividing network defined by the waveguide and configured to divide the electromagnetic energy transferred by the waveguide feed based on a taper profile.
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82.发明授权公开(公告)号：US11196146B2
公开(公告)日：2021-12-07
申请号：US16853814
申请日：2020-04-21
发明人： Meysam Moallem , Brian P. Ginsburg
摘要： A device comprises a package substrate and a ball grid array (BGA). The package substrate encapsulates an integrated circuit (IC) die and comprises a signal launch configured to emit or receive a signal on a surface of the package substrate. The BGA is affixed to the surface and comprises a set of grounded solder balls arranged as a boundary around the signal launch. The device may further comprise a printed circuit board (PCB) substrate having a waveguide interface side opposite a secondary waveguide side and a through-hole cavity that extends from the waveguide interface side to the secondary waveguide side, perpendicular to a plane of the PCB substrate. The BGA couples the package substrate to the waveguide interface side such that the surface of the package substrate faces the through-hole cavity and the signal launch and through-hole cavity are substantially aligned.
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公开(公告)号：US20210336338A1
公开(公告)日：2021-10-28
申请号：US17038136
申请日：2020-09-30
申请人： Inventec Appliances (Pudong) Corporation , INVENTEC APPLIANCES CORP. , Inventec Appliances (Shanghai) Co. Ltd.
发明人： Yu-Wei CHANG , Shu-Yang TU
摘要： A dual-band antenna includes a first conductive portion, a ground layer, a ground portion, a second conductive portion and a third conductive portion. The first conductive portion has a resonant cavity. The ground portion extends from the ground layer toward the first conductive portion. The second conductive portion extends from the ground layer toward the first conductive portion. The third conductive portion extends from the ground layer toward the first conductive portion. The second conductive portion and the third conductive portion are disposed symmetrically with respect to the ground portion.
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公开(公告)号：US11133594B2
公开(公告)日：2021-09-28
申请号：US16240057
申请日：2019-01-04
申请人： Veoneer US, Inc.
发明人： Majid Ahmadloo
摘要： A waveguide antenna apparatus includes a lower laminate layer of non-radio-frequency (RF) material and a first layer of conductive material formed on a top surface of the lower laminate layer of non-RF material. A middle layer of non-RF material formed over the first layer of conductive material, the middle layer of non-RF material comprising a waveguide cavity formed through the middle layer of non-RF material, such that air forms a propagation medium for radiation in the waveguide cavity. An upper layer of non-RF material is formed over the middle layer of non-RF material, and a second layer of conductive material is formed on a top surface of the upper layer of non-RF material, the first and second layers of conductive material and the waveguide cavity being part of a waveguide antenna.
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公开(公告)号：US11075466B2
公开(公告)日：2021-07-27
申请号：US16640161
申请日：2018-08-21
发明人： Ronald J. Brandau
摘要： Parabolic reflector antennas advantageously support low side lobe radiation patterns for ETSI class 4 performance, by utilizing: (i) metal choke plates adjacent a distal end of a dielectric cone within a sub-reflector assembly, (ii) “lossy” material feed boom waveguide sleeves and/or (iii) extended length cylindrical shields lined with radiation absorbing materials. Relatively shallow and large diameter parabolic reflectors having an F/D ratio of greater than about 0.25 may be provided with one or more of the identified (i)-(iii) enhancements.
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公开(公告)号：US11075436B2
公开(公告)日：2021-07-27
申请号：US16696931
申请日：2019-11-26
摘要： An RF joint rotating about an axis of rotation (Z) includes a number N, greater than or equal to 1, of RF transmission channels, a first, internal surface of symmetry of revolution about the axis (Z) and of RF transmission having a first, internal radius r1, and a second, external surface of symmetry of revolution about the axis (Z) and of RF transmission having a second, external radius r2, strictly less than the first, internal radius r1. The first and second RF transmission surfaces facing one another and rotationally mobile about the axis (Z) are configured through the first and second radii r1, r2, the geometry of the first and second RF access ports, and the geometry of the first and second RF containment and guidance means, such that: each RF transmission channel Vi, i varying from 1 to N, comprises a first RF rotating waveguide, and the N first RF rotating waveguides are distributed angularly over a predetermined number NC, greater than or equal to 1 and less than or equal to N, of sections of surfaces of revolution about the axis (Z) of the second RF transmission surface, each of the NC sections being situated along the longitudinal axis of symmetry (Z) at a predetermined different level L1(k).
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公开(公告)号：US20210203075A1
公开(公告)日：2021-07-01
申请号：US17091965
申请日：2020-11-06
发明人： Foad Arfaei Malekzadeh , Stephen Joseph Kovacic , Abdulhadi Ebrahim Abdulhadi , Dinhphuoc Vu Hoang
摘要： An end-fire antenna for wideband low form factor applications includes a first metal layer, a second metal layer, and a dielectric layer disposed between the first and second metal layers. An open cavity formed in the dielectric layer that is filled with air, the cavity defined by a pair of sidewalls that extend from an aperture of the cavity to a rear wall of the cavity, where the depth of the aperture is defined between the aperture and the rear wall. The cavity is formed by selecting the width of the aperture of the cavity and the depth of the cavity such that the antenna achieves the same gain during operation irrespective of a variation in the thickness of the antenna.
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公开(公告)号：US20210184339A1
公开(公告)日：2021-06-17
申请号：US17186639
申请日：2021-02-26
申请人： Viasat Inc.
发明人： Frederic Bongard , Xavier Aubry , Martin Gimersky
摘要： The described features include a scalable waveguide architecture for a waveguide device. The waveguide device may be split into one or more waveguide blocks instead of manufacturing increasingly larger single-piece waveguide devices. Described techniques provide for a radio-frequency (RF) seal between such waveguide blocks that may facilitate greater manufacturing tolerances while maintaining an effective RF seal at the junction of the waveguide blocks. The described techniques include channels within one or more waveguide blocks opening to the dielectric gap between the waveguide blocks. The channels may, for each of multiple waveguides joined at the interface between waveguide blocks, be included in one or both waveguide blocks and may be in a single waveguide dimension relative to the multiple waveguides, or extend for more than one waveguide dimensions.
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89.发明授权公开(公告)号：US10957989B2
公开(公告)日：2021-03-23
申请号：US16552173
申请日：2019-08-27
申请人： AIRBUS ITALIA S.P.A.
发明人： Alfredo Catalani , Fabio Maggio , Vincenzo Pascale , Piero Angeletti , Giovanni Toso , Daniele Petrolati
摘要： A directional waveguide coupler (20) has four input ports and four output ports. Each input port is coupled to each of the output ports. The directional coupler (20) includes a first coupler having two waveguides (W1, W2) coupled to each other by a first slot array (S1), defined in a first wall (21) common to the two waveguides (W1, W2) of the first coupler. A second coupler has two waveguides (W3, W4), coupled to each other by a second slot array (S2), defined in a second wall (22) common to the two waveguides (W3, W4) of the second coupler. The first and second slot arrays (S1, S2) lie on a first common plane. The first and second couplers are coupled to each other by a third slot array (S3) and a fourth slot array (S4), which lie on a second common plane perpendicular to the first common plane.
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公开(公告)号：US10819022B1
公开(公告)日：2020-10-27
申请号：US16589203
申请日：2019-10-01
发明人： William Milroy , Alan Lemons
摘要： A variable inclination continuous transverse stub antenna includes a first conductive plate and a second conductive plate spaced relative to the first conductive plate. The first conductive plate includes a first surface partitioned into a first region and a second different region, a first group of CTS radiators on the first region, and a second group of CTS radiators on the second region. A spacing and a width in an E-field direction of the first group of radiators is different in respect to a spacing and width in the E-field direction of the second group of radiators. The second conductive plate includes a second surface parallel to the first surface, the second surface partitioned into a first parallel plate transmission line and a second different parallel plate transmission line, the first and second parallel plate transmission lines configured to receive or output a different radio frequency signals from one another.
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