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公开(公告)号:US12034230B1
公开(公告)日:2024-07-09
申请号:US18208321
申请日:2023-06-12
发明人: Haijun Tang , Xiaoyong Zeng , Lianhui Peng , Xuebing Jiang , Songlin Li
摘要: An all-metal dual-polarized feeding element and an all-metal dual-polarized panel antenna are provided. According to the present disclosure, a first metal plate and M*N same waveguide radiating ports on the first metal plate form a radiating network. A second metal plate, a third metal plate, a fourth metal plate, a quadruple-ridged waveguide array, a first polarization feeding network, a second polarization feeding network, a coaxial to double-ridged waveguide array, and a double-ridged waveguide to quadruple-ridged waveguide array form a feeding network. Therefore, the dual-polarized feeding element and the dual-polarized panel antenna realize a wide bandwidth, a high efficiency and a low profile. The present disclosure solves problems of poor performance and hard realization of existing dual-polarized antennas in wide bandwidth, high efficiency and low profile.
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公开(公告)号:US11799211B2
公开(公告)日:2023-10-24
申请号:US18075166
申请日:2022-12-05
申请人: Kymeta Corporation
CPC分类号: H01Q21/0037 , H01Q5/55 , H01Q15/0086 , H01Q15/04
摘要: Multiband guiding structures for antennas and methods for using the same are described. In one embodiment, an antenna comprises: an antenna aperture with radio-frequency (RF) radiating antenna elements; and a center-fed, multi-band wave guiding structure coupled to the antenna aperture to receive a feed wave in two different frequency bands and propagate the feed wave to the RF radiating antenna elements of the antenna aperture.
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公开(公告)号:US11569576B2
公开(公告)日:2023-01-31
申请号:US17554113
申请日:2021-12-17
发明人: Hamed Pourbeyram Kaleibar , Yu-Hsiang Cheng , Michael Etienne , Ohad Harlev , Dipayan Datta Choudhary
摘要: An apparatus and method for wavelength conversion of a signal, for example, a dual-polarization signal, is disclosed. The apparatus implements a single-loop counter-propagating wavelength conversion scheme which provides both up-conversion and down-conversion of the signal within the same loop. Nonlinear wavelength conversion devices in the loop provide both up-conversion and down-conversion of the polarization components of the signal within the loop depending on whether the polarization component travels through the nonlinear conversion device in a clockwise or a counter-clockwise direction. The wavelength-converted signal is available to be extracted from the wavelength-conversion loop. An all-optical wavelength-division multiplexing transponder based on the wavelength-conversion scheme is also disclosed.
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公开(公告)号:US20220181778A1
公开(公告)日:2022-06-09
申请号:US17601554
申请日:2020-04-09
申请人: SWISSto12 SA
发明人: Emile de Rijk , Mathieu Billod , Esteban Menargues Gomez , Santiago Capdevila Cascante , Tomislav Debogovic , Alexandre Dimitriades , Lionel Simon , Arnaud Boland
摘要: An arrangement for communication satellites including a payload bay. The arrangement includes an assembly of waveguides, waveguide fixation interfaces for fixing the waveguides to electronic equipment and/or components and a mechanical structure including a plurality of links interconnecting at least some of the waveguides to ensure the stability of the waveguide assembly. The arrangement further includes at least one heat pipe that is arranged to heat or cool one or more of the waveguides. The arrangement is formed in a single piece by 3D printing.
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5.
公开(公告)号:US11092684B2
公开(公告)日:2021-08-17
申请号:US16871397
申请日:2020-05-11
申请人: VAYYAR IMAGING LTD
发明人: Raviv Melamed , Damian Hoffman , Jonathan Rosenfeld , Ronen Tur
IPC分类号: G01S13/00 , G01N22/00 , G01S13/86 , G01B15/04 , G06T7/50 , G06T17/00 , G01S13/89 , G01S13/90 , A61B8/00 , A61B5/0507 , H01Q5/48 , H01Q5/55 , H01Q1/42 , H01Q9/04 , H01Q9/28 , H01Q13/10 , H04B7/0413 , H04B7/00
摘要: A system for generating a three dimension (3D) imaging of an object, the system comprising: an electromagnetic transducer array such as an RF (radio-frequency) antenna array surrounding the object said array comprising: a plurality of electromagnetic transducers; a transmitter unit for applying RF signals to said electromagnetic transducer array; and a receiver unit for receiving a plurality of RF signals affected by said object from said electromagnetic transducers array; a Radio Frequency Signals Measurement Unit (RFSMU) configured to receive and measure said plurality of plurality of affected RF signals and provide RF data of the object; and at least one processing unit, configured to process said RF data to identify the dielectric properties of said object and construct a 3D image of said object.
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6.
公开(公告)号:US20210184760A1
公开(公告)日:2021-06-17
申请号:US16713729
申请日:2019-12-13
申请人: Mosat Corporation
发明人: Syngbum Kim
IPC分类号: H04B7/185 , H01Q21/06 , H01Q21/30 , H01Q13/02 , H01P1/213 , H01Q1/24 , H01Q1/28 , H01Q5/55 , H01Q9/04 , H04B7/19 , H04B7/195
摘要: A multi-mode communication system includes: a flat panel antenna configured to couple a satellite receive a down-link satellite packet; a satellite Rx/Tx, coupled to flat panel antenna, configured to decode the down-link satellite packet; a storage device, coupled to the satellite Rx/Tx, configured to store satellite data from down-link satellite packet; an interface module configured to encode and transfer satellite data as cellular communication packets, WiFi packets, location and services packets, when a local infrastructure is disabled; wherein: interface module further configured to receive cellular communication packets, WiFi packets, location/services packets, and store in satellite data; the satellite Rx/Tx further configured to encode the satellite data up-link satellite packet; and the flat panel antenna further configured to transmit up-link satellite packet to the satellite.
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公开(公告)号:US10916849B2
公开(公告)日:2021-02-09
申请号:US16134519
申请日:2018-09-18
发明人: Xin Luo , Hongyong Lin , Zhili Guo
摘要: The present application discloses a coaxial dual-band antenna, including a waveguide tube, a ring groove, a high frequency feed, and a dielectric ring. The high frequency feed and the dielectric ring have a same axis with the waveguide tube. The waveguide tube has a tubular structure, and is configured to transmit a first electromagnetic wave, the ring groove whose opening direction is the same as an output direction of the first electromagnetic wave is on a wall of the waveguide tube. The high frequency feed is located in the waveguide tube. The dielectric ring is filled between the waveguide tube and the high frequency feed, and has a multi-layer structure. The area sizes of planes that are at layers of the dielectric ring and that are perpendicular to the axis alternately change, and a height of the dielectric ring is less than a height of the waveguide tube.
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公开(公告)号:US20210028537A1
公开(公告)日:2021-01-28
申请号:US16520223
申请日:2019-07-23
申请人: VEONEER US, INC.
摘要: Waveguide module assemblies for vehicles, such as radar sensor waveguide feed to waveguide transition assemblies. In some embodiments, an antenna module may comprise an antenna assembly that includes a resonating element and a waveguide component that defines, at least in part, a waveguide configured to guide electromagnetic energy radiating from the resonating element. The resonating element of the antenna assembly may directly feed electromagnetic energy into the waveguide defined by the waveguide component.
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公开(公告)号:US10903582B2
公开(公告)日:2021-01-26
申请号:US16537320
申请日:2019-08-09
发明人: Jie Peng , Xiaoqiang Yang
摘要: An antenna array and a communications device are provided. The antenna array includes a feeding waveguide and a waveguide cover. A waveguide port is disposed on the feeding waveguide, and an array of radiation slots are arranged along the length of the waveguide cover. The slots are configured to transmit signals fed from the waveguide port, and are classified into a first subarray and a second subarray. At a center frequency of the antenna array, the difference between a beam angle of the first subarray and a required beam angle, and a difference between a beam angle of the second subarray and the required beam angle, is each less than a specified threshold. With a frequency change of the antenna array, the beam angle of the first subarray and the beam angle of the second subarray change in opposing directions. Therefore, when the first and second subarray beams are combined, the combined beam angle has reduced frequency dependence.
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公开(公告)号:US10811779B2
公开(公告)日:2020-10-20
申请号:US16735014
申请日:2020-01-06
发明人: Robert Bennett , Irwin Gerszberg , Farhad Barzegar , Thomas M. Willis, III , Donald J. Barnickel , Paul Shala Henry
摘要: Aspects of the subject disclosure may include, for example, a solid dielectric antenna having a non-uniform spatial distribution of relative permittivity.
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