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公开(公告)号:US10170843B2
公开(公告)日:2019-01-01
申请号:US15167703
申请日:2016-05-27
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor: Mark W. Thomson , Richard E. Hodges , Nacer E. Chahat , Jonathan Sauder , Yahya Rahmat-Samii , Brian Hirsh
Abstract: A deployable antenna is described. The antenna comprises a mesh attached to foldable ribs, a hub and a sub-reflector. The antenna can be stowed in a tight space for launching in space, and later deployed by extending out of its container. The antenna is designed to work in the Ka band or other bands and can increase data rates and function as a radio antenna.
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公开(公告)号:US20250108938A1
公开(公告)日:2025-04-03
申请号:US18906111
申请日:2024-10-03
Applicant: California Institute of Technology , Sophia Space, Inc.
Inventor: John R. Brophy , Leon Alkalai , Sergio Pellegrino , Jonathan Sauder , Timothy P. McElrath , Douglas J. Sheldon , Don J. Hunter
Abstract: In many embodiments of the invention, a space-based data center includes orbital server modules configured to be deployed in space, each module including a communication subsystem for module-to-module communications to form a data center, tiles arranged in a planar array, where each tile has a layered structure including solar cells forming a layer across a first surface, thermal radiator panels forming a layer across a second surface, electronic components distributed laterally in a layer between the layer of solar cells and the layer of thermal radiator panels, where each electronic component receives power locally from solar cells and rejects heat to the thermal radiator panel beneath it, where a first subset of tiles are compute tiles in which the electronic components include one or more computing processors and memory, and where a second subset of tiles are support tiles in which the electronics components include network switches and energy storage.
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公开(公告)号:US20240092509A1
公开(公告)日:2024-03-21
申请号:US18468611
申请日:2023-09-15
Applicant: California Institute of Technology
Inventor: Jonathan Sauder , Nacer E. Chahat , Juan M. Mejia-Ariza
Abstract: A device can be configured as an under-constrained deployable system. Such a system can use under-constrained deployable couplers. A device may include a second segment coupled to the first segment by a high strain structure, wherein the high strain structure is bent to store deployment energy in a stowed configuration. Releasing the stored deployment energy can allow an under-constrained deployable system to transition to an expanded configuration. A tensioning system can transition an under-constrained deployable system to a deployed configuration.
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公开(公告)号:US11063356B2
公开(公告)日:2021-07-13
申请号:US16434111
申请日:2019-06-06
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor: Manan Arya , Jonathan Sauder , Richard E. Hodges , Sergio Pellegrino
Abstract: A deployable reflectarray has a plurality of strips arranged in quadrants forming the reflectarray. The copper ground plane and the copper dipoles are supported by facesheets made of epoxy reinforced by quartz fibers. The copper ground plane is separated from the copper dipoles by S-shaped springs made of epoxy reinforced by quartz fibers, which allow folding and deployment of the reflectarray.
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公开(公告)号:US10276926B2
公开(公告)日:2019-04-30
申请号:US15850861
申请日:2017-12-21
Applicant: California Institute of Technology
Inventor: Thomas A. Cwik , Nacer E. Chahat , Jonathan Sauder , Manan Arya , Ellen Thiel
IPC: H01Q1/08 , H01Q1/28 , H01Q1/10 , H01Q19/18 , H01Q15/14 , H01Q3/06 , H01Q13/02 , H01Q3/46 , H01Q15/16 , H01Q19/08 , H01Q19/10
Abstract: A deployable reflectarray antenna stowable in a 6U CubeSat volume is deployed through tape deployers and quartz cables. The telescoping waveguide is attached to the horn with a threaded insert. The reflectarray antenna has, at 37.75 GHz, a directivity of 48.5 dBi, a gain of 47.8 dBi, and an aperture efficiency of 42%. Hinges with a ball-end screw enable precise control of deployment angle of adjacent panels in the reflectarray antenna.
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