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公开(公告)号：US12101069B2
公开(公告)日：2024-09-24
申请号：US17707735
申请日：2022-03-29
发明人： Frederic Duez , Frederic Paillardet
CPC分类号： H03G3/3036 , H03F3/19 , H04B1/04 , H03F2200/451 , H03G2201/103 , H03G2201/307
摘要： Technologies are provided for variable gain amplifiers (VGAs). An example VGA includes a resistor ladder including resistor legs coupled to first and second resistors; first differential switches connected to the resistor ladder and second differential switches connected to output nodes, a transistor in each of the first differential switches being coupled to an first electrical line interconnecting the first resistors and a different transistor in each of the first differential switches being coupled to a second electrical line interconnecting the second resistors; third differential switches connected to the resistor ladder and fourth differential switches connected to the output nodes, a transistor in each of the third differential switches being coupled to the first electrical line and a different transistor in each of the fourth differential switches being coupled to the second electrical line; and a pair of transistors respectively connected to the first differential switches and the third differential switches.
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公开(公告)号：US11958638B1
公开(公告)日：2024-04-16
申请号：US16874257
申请日：2020-05-14
摘要： A solar array system associated with a spacecraft includes a solar array blanket portion moveable from a stowed configuration into a deployed configuration, an extendable frame coupled to the spacecraft and the blanket portion and moveable from at least a collapsed configuration into an extended configuration to move the solar array blanket portion from the stowed configuration into the deployed configuration, and at least one biasing member extending across an exterior portion of a first hinge assembly that is configured to bias at least a portion of the extendable frame into the deployed configuration.
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公开(公告)号：US20240072830A1
公开(公告)日：2024-02-29
申请号：US18499588
申请日：2023-11-01
发明人： Anders Jensen , Samuel T. Reineman
CPC分类号： H04B1/0458 , H01P3/12 , H04B1/036 , H04B1/18 , H04B7/18515
摘要： An integrated signal chain includes a waveguide network defined by first and second waveguide layers forming a waveguide stack. A first transmit waveguide channel (WGC) is configured to communicate first transmit electromagnetic signals from a first transmit port to an antenna feed port, and a first receive WGC is configured to communicate first receive electromagnetic signals from the antenna feed port to a first receive port. A transmit module is attached to an exterior side of the first waveguide layer, and the first transmit WGC couples the transmit module to the antenna. A receive module is attached to the exterior side of the first waveguide layer, and the first receive WGC couples the antenna to the receive module. A modem may be included. A thermal management assembly can be configured to dissipate heat from the modem, the receive module, and/or the transmit module.
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4.发明授权公开(公告)号：US11909506B2
公开(公告)日：2024-02-20
申请号：US18123879
申请日：2023-03-20
IPC分类号： H04B7/185
CPC分类号： H04B7/18519 , H04B7/18517 , H04B7/18536 , H04B7/18547 , H04B7/18571 , H04B7/18573
摘要： In one embodiment of the present disclosure, a satellite communication system includes a satellite constellation including a plurality of satellites in non-geosynchronous orbit (non-GEO), wherein at least some of the plurality of satellites travel in a first orbital path at a first inclination, and an end point terminal having an earth-based geographic location, the end point terminal having an antenna system defining a field of regard for communicating with the satellite constellation, wherein the field of regard is a limited field of regard, wherein the field of regard is tilted from a non-tilted position to a tilted position, and wherein the tilt angle of the tilted position is a function of the latitude of the geographic location.
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公开(公告)号：US20240031892A1
公开(公告)日：2024-01-25
申请号：US18231564
申请日：2023-08-08
发明人： Chen Chen , Pavel Chikulaev , Sergii Ziuzin , David Sacks , Peter J. Worters , Darshan Purohit , Yashodhan Dandekar , Vladimir Skuratovich , Andrei Pushkin , Phillip E. Barber
CPC分类号： H04W36/06 , H04W36/08 , H04B7/0695 , H04B7/18513
摘要： Systems, methods, and non-transitory media are provided for low latency handovers. An example method can include receiving, by a user terminal associated with a cell served by a satellite, a schedule of communications between the user terminal and one or more satellites, wherein the one or more satellites comprises the satellite and a different satellite, and wherein the schedule of communications is obtained by the user terminal from the satellite; requesting, based on the schedule, a handover from a beam of the satellite to a different beam of one of the satellite or the different satellite; performing the handover from the beam of the satellite to the different beam of the one of the satellite or the different satellite; and after the handover, transmitting, by the user terminal, one or more packets via the different beam of the one of the satellite or the different satellite.
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公开(公告)号：US20240025569A1
公开(公告)日：2024-01-25
申请号：US18375806
申请日：2023-10-02
摘要： A chassis for a spacecraft includes a solid plate that includes a first side and an opposing second side, and also includes a plurality of transverse walls extending from a surface of the second side and configured to radiate heat generated from the spacecraft into outer space.
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公开(公告)号：US11843402B1
公开(公告)日：2023-12-12
申请号：US17826033
申请日：2022-05-26
发明人： Anders Jensen , Samuel T. Reineman
CPC分类号： H04B1/0458 , H01P3/12 , H04B1/036 , H04B1/18 , H04B7/18515
摘要： An integrated signal chain includes a waveguide network defined by first and second waveguide layers forming a waveguide stack. A first transmit waveguide channel (WGC) is configured to communicate first transmit electromagnetic signals from a first transmit port to an antenna feed port, and a first receive WGC is configured to communicate first receive electromagnetic signals from the antenna feed port to a first receive port. A transmit module is attached to an exterior side of the first waveguide layer, and the first transmit WGC couples the transmit module to the antenna. A receive module is attached to the exterior side of the first waveguide layer, and the first receive WGC couples the antenna to the receive module. A modem may be included. A thermal management assembly can be configured to dissipate heat from the modem, the receive module, and/or the transmit module.
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公开(公告)号：US20230370106A1
公开(公告)日：2023-11-16
申请号：US18227686
申请日：2023-07-28
发明人： Amir Agah , Eric Pepin , Kim W. Schulze
IPC分类号： H04B1/3805 , H04B1/10 , H04B1/00
CPC分类号： H04B1/3805 , H04B1/006 , H04B1/1081 , H04B2001/3811
摘要： Systems and Techniques are provided for a radio frequency input/output (RFIO) circuit. An example RFIO circuit can include an a receive (Rx) path comprising a low noise amplifier (LNA). The example RFIO circuit can include a transmit (Tx) path comprising a power amplifier (PA). The example RFIO circuit can include a balun configured to RF couple an RFIO terminal to the Rx path or to the Tx path. The one or more selection components are configured to selectively enable the Rx path or the Tx path.
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公开(公告)号：US11787572B1
公开(公告)日：2023-10-17
申请号：US16870975
申请日：2020-05-10
CPC分类号： B64G1/645 , B64G1/007 , B64G1/641 , B64G1/226 , B64G1/40 , B64G2001/1092 , B64G2001/643
摘要： A system for securing spacecraft to a rocket and deploying the spacecraft into orbit includes a stack having a plurality of spacecraft arranged in layers, with each spacecraft being releasably mated with at least one spacecraft in an adjacent layer, and at least one hold down and deploy assembly configured to, in a first configuration, secure the layers of the stack together and secure the entire stack to the rocket, and, in a second configuration, release the entire stack from the rocket into orbit such that the layers passively separate.
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公开(公告)号：US11757526B1
公开(公告)日：2023-09-12
申请号：US17334546
申请日：2021-05-28
发明人： Chen Chen , Darshan Purohit , Yashodhan Dandekar , Pavel Chikulaev , David Sacks , Peter J. Worters , Phillip E. Barber
CPC分类号： H04B7/18513 , H04W72/21 , H04W74/004 , H04W74/0833 , H04L1/0003 , H04L5/0007
摘要： In an embodiment, a user terminal includes a connection manager component configured to generate an initial network entry request; an antenna assembly communicatively coupled to the connection manager and configured, in response to the initial network entry request, to find a satellite based on a search of a sky, wherein the satellite comprises a satellite assigned to downlink to a geographic cell associated with the user terminal; and a media access control (MAC) layer component communicatively coupled to the connection manager, the MAC layer component configured to generate an uplink radio frame including a random access channel (RACH) request associated with the initial network entry request at a particular portion of the uplink radio frame for the satellite, wherein the particular portion is selected by the MAC layer component from among a plurality of portions of the uplink radio frame.
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