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公开(公告)号：US20220255231A1
公开(公告)日：2022-08-11
申请号：US17623822
申请日：2020-07-03
摘要： An antenna 10 comprises a single wire wound in a helix 12 comprising a plurality of turns 1, 2, 3, n, n+1, . . . p around a main axis 11 with immediately adjacent turns having an inter-turn spacing between them. The helix has a back end 14 and a front end 16 and the main axis defines a main beam direction. A transverse crosssectional area of the helix monotonously decreases from the back end 14 to the front end 16. The inter-turn spacing S1 . . . Sn . . . monotonously decreases from the backend 14 to the front end 16. A feed-point 13 is provided at the back end 14.
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公开(公告)号：US12068537B2
公开(公告)日：2024-08-20
申请号：US17623822
申请日：2020-07-03
摘要： An antenna 10 comprises a single wire wound in a helix 12 comprising a plurality of turns 1, 2, 3, n, n+1, . . . p around a main axis 11 with immediately adjacent turns having an inter-turn spacing between them. The helix has a back end 14 and a front end 16 and the main axis defines a main beam direction. A transverse crosssectional area of the helix monotonously decreases from the back end 14 to the front end 16. The inter-turn spacing S1 . . . Sn . . . monotonously decreases from the backend 14 to the front end 16. A feed-point 13 is provided at the back end 14.
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公开(公告)号：US09819090B2
公开(公告)日：2017-11-14
申请号：US14432605
申请日：2013-01-07
摘要： An antenna 10 comprises at least a first pair 12 of elongate radiating elements and a second pair 14 of elongate radiating elements. Each pair comprises a first element 12.1 and a second element 12.2. Each element has a feed end 12.11 and a distal end 12.12. The first and second elements of each of the at least first pair and second pair have their respective feed ends 12.11, 12.21 in juxtaposition relative to one another and extend in diverging relationship relative to one another in a direction from their feed ends towards their distal ends. The at least first and second pairs are electrically connected in parallel. In some embodiments the elements may diverge exponentially. The invention also relates to antennas which may be packaged in at least partially knock-down form to be assembled or deployed conveniently at a user site.
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公开(公告)号：US20240072431A1
公开(公告)日：2024-02-29
申请号：US18357893
申请日：2023-07-24
CPC分类号： H01Q1/422 , H01Q21/205
摘要： A antenna dome assembly 10 comprises a dome 12 having a main vertical axis 14 and comprising a sidewall 16 having an external surface 18 and an internal surface 20 defining a first chamber 22. The first chamber has an axially extending centre region 24 and an axially extending outer band region 26 between the centre region 24 and the internal surface 20. The centre region 24 extends between 20% and 80% of a transverse line 28 through the dome. The assembly 10 further comprises an array 30 of elongate omnidirectional antennas. The array comprises at least one elongate omnidirectional antenna 32 having a vertical polarization and at least one elongate omnidirectional antenna 34 having a horizontal second polarization. The antennas of the array 30 are mounted in spaced relation relative to one another in at least one of: in the band region 26, on the internal surface 20 and on the external surface 22.
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公开(公告)号：US20230268652A1
公开(公告)日：2023-08-24
申请号：US18170519
申请日：2023-02-16
CPC分类号： H01Q5/307 , H01Q1/48 , H01Q21/26 , H01Q9/0407
摘要： A broad band directional antenna 10 comprises a patch antenna 12 comprising a conductive and non-circular patch 14 and having a main axis 16 extending perpendicularly to the patch. The antenna further comprises at least one active radiator 18.1, 18.2 which is axially spaced from the patch 14 in a first direction A. A metamaterial ground plane assembly 20 is located between the patch antenna 12 and the at least one active radiator 18.1, 8.2. The patch antenna 12 comprises a conductive ground plane 22 which is axially spaced from the patch 14 in a second and opposite direction B.
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公开(公告)号：US10790883B2
公开(公告)日：2020-09-29
申请号：US16466728
申请日：2017-12-05
IPC分类号： H04B7/04 , H04B7/0426 , H04B17/336 , H04B17/382 , H04B7/06 , H04B7/0413
摘要： A communications system 10 comprises a source arrangement 12 of periodic waves. The source arrangement is configured to generate an interferometric wave pattern having a plurality of lobes 18.1 to 18.13. Each lobe has a main axis 20 diverging from an origin 22 at the source arrangement and a null 24 between any two adjacent lobes. At least one sensor arrangement 26 is provided for the waves. The sensor arrangement comprises a first sensor 28 and a second sensor 30 which are spaced from one another. A first signal source 40 is connected to the source arrangement 12 via a phase shift arrangement 41 to generate a first interferometric wave pattern 18 which illuminates the first sensor 28 more than the second sensor 30. A second signal source 42 is connected to the source arrangement via the phase shift arrangement to generate a second interferometric pattern 46 which is off-set from the first interferometric pattern and which illuminates the second sensor more than the first sensor.
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公开(公告)号：US08698693B2
公开(公告)日：2014-04-15
申请号：US13045419
申请日：2011-03-10
申请人： Jürgen Dresel , Thomas David Abbott
发明人： Jürgen Dresel , Thomas David Abbott
摘要： A collapsible antenna (10) comprises an elongate boom (12) having a main axis (14) and a plurality of elongate radiating elements (16) having respective first ends (18.1) and respective second ends (18.2). At least some of the elongate radiating elements are flexible and are mounted at the respective first ends to the boom in longitudinally spaced relation. Regions towards the respective second ends of the at least some of the elongate radiating elements engage a flexible rope (20). The flexible rope forms part of a frame (22) which is manipulatable relative to the boom between a first collapsed configuration and a second operative configuration wherein the at least some radiating elements are in an operative configuration relative to the boom.
摘要翻译： 可折叠天线（10）包括具有主轴（14）和具有相应的第一端（18.1）和相应的第二端（18.2）的多个细长辐射元件（16）的细长悬臂（12）。 细长的辐射元件中的至少一些是柔性的，并且在相应的第一端处以纵向间隔的关系安装在悬臂上。 至少一些细长辐射元件的相应第二端的区域接合柔性绳索（20）。 柔性绳索形成框架（22）的一部分，该框架可在第一折叠构型和第二操作构型之间相对于起重臂操纵，其中至少一些辐射元件相对于起重臂处于可操作的构型。
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公开(公告)号：US11862853B2
公开(公告)日：2024-01-02
申请号：US17638488
申请日：2020-08-18
CPC分类号： H01Q15/0086 , H01Q1/48 , H01Q1/526 , H01Q9/0414 , H01Q21/26
摘要： The invention provides for a broad band directional antenna (10) comprising a ground plane (12) having an axis (14) extending perpendicularly to the ground plane, an active radiator (13) which is axially spaced from the ground plane, a metamaterial ground plane assembly (16) and a conductive pillar (28.1) between the first conductive wall and the ground plane. The metamaterial ground plane assembly comprises a metamaterial ground plane (17), a first conductive wall (20) adjacent a periphery of the metamaterial ground plane, the first conductive wall having a bottom (22) and atop (24) and a second wall (26) comprising two mutually insulated conductive wall parts (26.1, 26.2) located spaced from and outside of the first conductive wall. The bottom of the first conductive wall is located between the ground plane and the metamaterial ground plane and the top of the first conductive wall is located beyond the active radiator.
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公开(公告)号：US09900114B2
公开(公告)日：2018-02-20
申请号：US15504977
申请日：2015-08-21
IPC分类号： H04B17/00 , H04B17/16 , H04W88/08 , G01R29/08 , H04B17/40 , H04W24/08 , H04W24/10 , G01R29/10
CPC分类号： H04B17/16 , G01R29/0878 , G01R29/10 , H04B17/17 , H04B17/40 , H04W24/08 , H04W24/10 , H04W88/085
摘要： A monitoring system 22 for a distributed antenna system (DAS) 10 is provided. The DAS comprises central transmitter 12 which is connected by a signal transmission network 14 to a plurality of distributed antenna devices (DAD) 16.1 to 16.n. The network comprises physical branches. Each of the DAD's is connected to a respective sub-branch 14.11 and comprises at least one antenna 18. The antenna is associated with a frequency band having a center frequency fc and an associated wavelength Ac. The monitoring system comprises a central monitoring unit (CMU) 24 which is coupled to the network 14. A monitoring device 28.1 is associated with at least one of the DAD's and permanently mounted a distance d
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公开(公告)号：USD789332S1
公开(公告)日：2017-06-13
申请号：US29510718
申请日：2014-12-02
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