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1. 发明授权

US11594822B2 Parabolic reflector antennas with improved cylindrically-shaped shields 有权
公开(公告)号：US11594822B2
公开(公告)日：2023-02-28
申请号：US17355517
申请日：2021-06-23
申请人： CommScope Technologies LLC
发明人： Ronald J. Brandau
IPC分类号： H01Q13/06 , H01Q19/13 , H01Q15/16 , H01Q19/19
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.

2. 发明授权

US11588232B2 Flexible radome structures 有权
公开(公告)号：US11588232B2
公开(公告)日：2023-02-21
申请号：US17284257
申请日：2019-10-09
申请人： CommScope Technologies LLC
发明人： Thomas C. Tulloch , Griogair Whyte , Donald B. Gardner , Matthew Lewry , Craig Mitchelson , Steven William Bell
IPC分类号： H01Q1/42 , H01Q15/16 , H01Q19/13
摘要： An antenna structure includes a radiator element configured for operation at a first microwave frequency range and at a second microwave frequency range that is higher than the first microwave frequency range, and a reflector including the radiator element attached thereto. The reflector includes an enclosure that houses the radiator element and a radiating aperture. The antenna structure further includes a radome assembly adjacent the radiating aperture. The radome assembly includes a flexible radome having a thickness that is less than a wavelength corresponding to the first or second microwave frequency ranges, and a tensioning member that extends along a perimeter of the flexible radome and maintains tension in a surface of the flexible radome.

3. 发明授权

US11569184B2 Terahertz device 有权
公开(公告)号：US11569184B2
公开(公告)日：2023-01-31
申请号：US17719056
申请日：2022-04-12
申请人： ROHM Co., Ltd.
发明人： Kazuisao Tsuruda
IPC分类号： H01L23/66 , H01Q15/16 , H01L29/20 , H01Q1/22 , H01Q19/13 , H01L29/88 , H01Q15/23
摘要： A terahertz device of the present invention includes a terahertz element generating an electromagnetic wave, a dielectric including a dielectric material and surrounding the terahertz element, a gas space including a gas, and a reflecting film serving as a reflecting portion. The reflecting film includes a portion opposing the terahertz element through the dielectric and the gas space and reflecting the electromagnetic wave toward a direction, wherein the electromagnetic wave is generated from the terahertz element and transmitted through the dielectric and the gas space. In addition, the refractive index of the dielectric is lower than the refractive index of the terahertz element and is higher than the refractive index of the gas in the gas space.

4. 发明授权

US11469515B2 Prism for repointing reflector antenna main beam 有权
公开(公告)号：US11469515B2
公开(公告)日：2022-10-11
申请号：US17182992
申请日：2021-02-23
申请人： Isotropic Systems Ltd
发明人： Jeremiah P. Turpin , John Finney
IPC分类号： H01Q19/13 , H01Q5/55 , H01Q1/24 , H01Q3/08 , H01Q3/20 , H01Q15/16 , H01Q19/19 , H04B7/185
摘要： A microwave prism is used to repoint an operational Direct-to-Home (DTH) or Very Small Aperture Terminal (VSAT) reflector antenna as part of a ground terminal to receive (or transmit) signals from a different satellite or orbital position without physically moving the reflector or the feed horn antenna. The microwave prism operates by shifting the radiated fields from the horn antenna generally perpendicular to the focal axis of the parabolic reflector in order to cause the main beam of the reflector to scan in response. For an existing reflector antenna receiving signals from an incumbent satellite, a prism has been designed to be snapped into place over the feed horn and shift the fields laterally by a calibrated distance. The structure of the prism is designed to be positioned and oriented correctly without the use of skilled labor. This system allows a satellite service provider to repoint their subscribers to a new satellite by shipping a self-install kit of the prism that is pre-configured to have the correct orientation and position on the feed antenna to correctly re-point the beam at a different satellite once the prism is applied. One benefit of the system is that unskilled labor, i.e., the subscribers themselves, can be used to repoint a large number of subscriber antennas in a satellite network rather than requiring the cost of a truck roll and a technician to visit every site. The microwave prisms to implement this functionality can be constructed in different ways, with homogeneous slabs or blocks, Gradient-Index (GRIN), multi-layered dielectric, geometric or graded-index Fresnel-zone, metasurface, or metamaterial prisms. The geometric and electrical constraints of the design are determined by the incumbent and target satellites and the ground terminal location.

5. 发明申请

US20210193051A1 DRIVING CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME 有权
公开(公告)号：US20210193051A1
公开(公告)日：2021-06-24
申请号：US17191607
申请日：2021-03-03
申请人： Samsung Display Co., Ltd.
发明人： Ki-Myeong Eom
IPC分类号： G09G3/3266 , G09G3/3233 , G09G3/3258 , G09G3/3291 , H01L27/32 , H01Q9/04 , H01Q19/00 , H01Q19/13
摘要： Provided is a scan driving circuit including a plurality of unit scan driving circuits, at least one of the plurality of unit scan driving circuits including: a first transistor configured to receive a prior scan signal in synchronization with a first clock signal and to respond to an enable level of the prior scan signal to output a second clock signal as a corresponding scan signal during one cycle of the first clock signal; a second transistor coupled between the first transistor and a first voltage; and a third transistor coupled to a gate of the second transistor and configured to be turned on by a first signal. A width of a first wire configured to transfer the first clock signal and a width of a second wire configured to transfer the second clock signal are larger than that of a third wire configured to transfer the first signal.

6. 发明授权

US10992373B2 Access node for end-to-end beamforming communications system 有权
公开(公告)号：US10992373B2
公开(公告)日：2021-04-27
申请号：US16868728
申请日：2020-05-07
申请人： ViaSat, Inc.
发明人： Kenneth V. Buer , Mark J. Miller , Christopher J. Cronin
IPC分类号： H04B7/185 , H04B7/06 , H04W84/06 , H01Q19/13 , H01Q21/24 , H01Q25/00 , H04B7/024 , H04B7/0413 , H04W4/00 , H04B7/204 , H01Q3/40 , H04W76/10 , H01Q5/50 , H01Q1/06 , H01Q1/28 , H01Q3/24 , H01Q21/00 , H04W16/28 , H04W40/20 , H04B10/118 , H01Q1/24 , H04W16/26
摘要： Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.

7. 发明申请

US20210021335A1 SYSTEM AND METHOD FOR RETURN END-TO-END BEAMFORMING 有权
公开(公告)号：US20210021335A1
公开(公告)日：2021-01-21
申请号：US17061928
申请日：2020-10-02
申请人： VIASAT, INC.
发明人： Kenneth V. Buer , Mark J. Miller
IPC分类号： H04B7/185 , H04B7/06 , H04W84/06 , H01Q19/13 , H01Q21/24 , H01Q25/00 , H04B7/024 , H04B7/0413 , H04W4/00 , H04B7/204 , H01Q3/40 , H04W76/10 , H01Q5/50 , H01Q1/06 , H01Q1/28 , H01Q3/24 , H01Q21/00 , H04W16/28 , H04W40/20 , H04B10/118
摘要： Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.

8. 发明申请

US20200287292A1 ANTENNA ARRAY AND WIRELESS COMMUNICATIONS DEVICE 审中-公开
公开(公告)号：US20200287292A1
公开(公告)日：2020-09-10
申请号：US16884211
申请日：2020-05-27
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： Maomao Zhu , Bo Yuan , Rui Hua
IPC分类号： H01Q21/06 , H01Q19/13 , H01Q1/38
摘要： An antenna array and a wireless communications device are disclosed. The antenna array includes at least two directional antennas in different directions. Each directional antenna includes an antenna element, a reflector, a feed line coupled to the antenna element, and a switch for controlling the feed line. The antenna element is a microstrip dipole antenna element. The reflector is a parasitic microstrip antenna element. A length of the reflector is greater than a length the antenna element. Two ends of the reflector are bent toward the antenna element. A distance between midpoints of reflectors of any two directional antennas is less than a distance between midpoints of antenna elements thereof. Because the reflectors of the antenna array are located on an inner side of a pattern enclosed by the antenna elements of directional antennas, a size of the antenna array is small.

9. 发明申请

US20200266882A1 ACCESS NODE FOR END-TO-END BEAMFORMING COMMUNICATIONS SYSTEM 审中-公开
公开(公告)号：US20200266882A1
公开(公告)日：2020-08-20
申请号：US16868728
申请日：2020-05-07
申请人： ViaSat, Inc.
发明人： Kenneth V. Buer , Mark J. Miller , Christopher J. Cronin
IPC分类号： H04B7/185 , H04W4/00 , H04B10/118 , H04W40/20 , H04W16/28 , H01Q21/00 , H01Q3/24 , H01Q1/28 , H01Q1/06 , H01Q5/50 , H04B7/204 , H04W76/10 , H01Q3/40 , H01Q25/00 , H01Q21/24 , H01Q19/13 , H04W84/06 , H04B7/06 , H04B7/0413 , H04B7/024
摘要： Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.

10. 发明申请

US20200259266A1 SYNCHRONIZED MULTIPLE-RADIO ANTENNA SYSTEMS AND METHODS 审中-公开
公开(公告)号：US20200259266A1
公开(公告)日：2020-08-13
申请号：US16858347
申请日：2020-04-24
申请人： Ubiquiti Inc.
发明人： Richard J. KENIUK , Gary D. SCHULZ
IPC分类号： H01Q19/10 , H04B1/00 , H01Q21/00 , H01Q15/16 , H01Q1/24 , H01Q19/13
摘要： Multi-radio antenna apparatuses and stations for wireless networks including multiple radios coupled to a single transmit/receive antenna, in which the antenna is highly synchronized by an external (e.g., GPS) signal. These multi-radio antenna systems may provide highly resilient links. Synchronization may allow these apparatuses to organically scale the transmission throughput while preventing data loss. The single transmit/receive antenna may have a single dish or a compound (e.g., a single pair of separate transmitting and receiving dishes) and connections for two or more radios.

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