公开(公告)号：US12191865B2

公开(公告)日：2025-01-07

申请号：US18225477

申请日：2023-07-24

Applicant: Space Exploration Technologies Corp. ,  Iliana Ghazali

Inventor： David Francois Jacquet ,  Mostafa Ghazali ,  Masoud Kahrizi ,  Andras Tantos

IPC: H03L7/07 ,  H03L7/197

Abstract: In an embodiment, an apparatus includes one or more timing components configured to generate a reference time signal based on a timing signal and a reference clock signal. The apparatus includes phase lock loop (PLL) configured to generate a synchronized output clock signal based on the reference clock signal and the reference time signal.

公开(公告)号：US12170409B2

公开(公告)日：2024-12-17

申请号：US18091995

申请日：2022-12-30

Applicant: Space Exploration Technologies Corp.

Inventor： Eric Pepin ,  Kim W. Schulze ,  Ersin Yetisir ,  Javier Rodriguez De Luis

IPC: H01Q3/30

Abstract: Systems, methods, and non-transitory media are provided for cross-coupling modeling and compensation. An example method can include determining one or more cross-coupling coefficients representing electrical cross-coupling between a first signal path through a component and a second signal path through the component; based on the one or more cross-coupling coefficients, determining a first modified beamforming weight for a first signal associated with the first signal path through the component and a second modified beamforming weight for a second signal associated with the second signal path through the component, wherein the first and second modified beamforming weights compensate for the electrical cross-coupling between the first signal path through the component and the second signal path through the component; applying the first modified beamforming weight to the first signal associated with the first signal path; and applying the second modified beamforming weight to the second signal associated with the second signal path.

公开(公告)号：US12101069B2

公开(公告)日：2024-09-24

申请号：US17707735

申请日：2022-03-29

Applicant: Space Exploration Technologies Corp.

Inventor： Frederic Duez ,  Frederic Paillardet

IPC: H03G3/30 ,  H03F3/19 ,  H04B1/04

CPC classification number: H03G3/3036 ,  H03F3/19 ,  H04B1/04 ,  H03F2200/451 ,  H03G2201/103 ,  H03G2201/307

Abstract: 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.

公开(公告)号：US11958638B1

公开(公告)日：2024-04-16

申请号：US16874257

申请日：2020-05-14

Applicant: Space Exploration Technologies Corp.

Inventor： Whitcomb T. Ratcliff ,  Joseph Fitzgerald

IPC: B64G1/44 ,  B64G1/22

CPC classification number: B64G1/443 ,  B64G1/22 ,  B64G1/222 ,  B64G1/44

Abstract: 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.

公开(公告)号：US20240072830A1

公开(公告)日：2024-02-29

申请号：US18499588

申请日：2023-11-01

Applicant: Space Exploration Technologies Corp.

Inventor： Anders Jensen ,  Samuel T. Reineman

IPC: H04B1/04 ,  H01P3/12 ,  H04B1/036 ,  H04B1/18

CPC classification number: H04B1/0458 ,  H01P3/12 ,  H04B1/036 ,  H04B1/18 ,  H04B7/18515

Abstract: 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.

公开(公告)号：US11909506B2

公开(公告)日：2024-02-20

申请号：US18123879

申请日：2023-03-20

Applicant: Space Exploration Technologies Corp.

Inventor： Duncan E. Adams ,  David Milroy ,  Jonathan François Cornelis Herman ,  Jessica D. Johnson

IPC: H04B7/185

CPC classification number: H04B7/18519 ,  H04B7/18517 ,  H04B7/18536 ,  H04B7/18547 ,  H04B7/18571 ,  H04B7/18573

Abstract: 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.

公开(公告)号：US20240031892A1

公开(公告)日：2024-01-25

申请号：US18231564

申请日：2023-08-08

Applicant: Space Exploration Technologies Corp.

Inventor： Chen Chen ,  Pavel Chikulaev ,  Sergii Ziuzin ,  David Sacks ,  Peter J. Worters ,  Darshan Purohit ,  Yashodhan Dandekar ,  Vladimir Skuratovich ,  Andrei Pushkin ,  Phillip E. Barber

IPC: H04W36/06 ,  H04W36/08 ,  H04B7/06 ,  H04B7/185

CPC classification number: H04W36/06 ,  H04W36/08 ,  H04B7/0695 ,  H04B7/18513

Abstract: 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.

公开(公告)号：US20240025569A1

公开(公告)日：2024-01-25

申请号：US18375806

申请日：2023-10-02

Applicant: Space Exploration Technologies Corp.

Inventor： Joshua A. Dunford ,  Garrett P. Simard ,  Samuel T. Reineman ,  McKenzie W. Read ,  Brent Crabtree

IPC: B64G1/58 ,  B64G1/66 ,  B64G1/42

CPC classification number: B64G1/58 ,  B64G1/66 ,  B64G1/425 ,  B64G1/428

Abstract: 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.

公开(公告)号：US11843402B1

公开(公告)日：2023-12-12

申请号：US17826033

申请日：2022-05-26

Applicant: Space Exploration Technologies Corp.

Inventor： Anders Jensen ,  Samuel T. Reineman

IPC: H04B1/04 ,  H04B1/18 ,  H01P3/12 ,  H04B1/036 ,  H04B7/185

CPC classification number: H04B1/0458 ,  H01P3/12 ,  H04B1/036 ,  H04B1/18 ,  H04B7/18515

Abstract: 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.

公开(公告)号：US20230370106A1

公开(公告)日：2023-11-16

申请号：US18227686

申请日：2023-07-28

Applicant: Space Exploration Technologies Corp.

Inventor： Amir Agah ,  Eric Pepin ,  Kim W. Schulze

IPC: H04B1/3805 ,  H04B1/10 ,  H04B1/00

CPC classification number: H04B1/3805 ,  H04B1/006 ,  H04B1/1081 ,  H04B2001/3811

Abstract: 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.