-
1.发明申请LOW POWER MULTI-GIGABIT PER SECOND MILLIMETER-WAVE DATA-LINK EMPLOYING MODULATED REFLECTIONS 审中-公开低功耗多功能数码相机采用第二台数码相机采用调制反射公开(公告)号：US20150280321A1
公开(公告)日：2015-10-01
申请号：US14675319
申请日：2015-03-31
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Adrian J. Tang , Nacer E. Chahat , Goutam Chattopadhyay , Choonsup Lee
IPC: H01Q3/46
CPC classification number: H01Q3/46
Abstract: A system for wirelessly communicating between a base station and a mobile device, including a reflector integrated with a mobile device, wherein the reflector reflects carrier radiation transmitted from a base station, to form a reflection of the carrier radiation, and input data from the mobile device modulates a reflection coefficient of the reflector, thereby modulating the reflection such that the reflection of the carrier radiation carries the input data to the base station.
Abstract translation: 一种用于在基站和移动设备之间进行无线通信的系统，包括与移动设备集成的反射器，其中所述反射器反射从基站发送的载波辐射，以形成载波辐射的反射，并且从移动台输入数据 器件调制反射器的反射系数，从而调制反射，使得载波辐射的反射将输入数据传送到基站。
-
2.发明申请公开(公告)号：US20150236396A1
公开(公告)日：2015-08-20
申请号：US14626757
申请日：2015-02-19
Applicant: California Institute of Technology
Inventor： Adrian Joseph Tang , Goutam Chattopadhyay , Nacer E. Chahat , Emmanuel Decrossas
CPC classification number: H01P5/188 , H01P5/12 , Y10T29/49016
Abstract: A system, method, device, and apparatus provide a dielectric waveguide splitter/bi-directional link. A dielectric substrate fabricated into a first Y-junction waveguide with a first port splitting into a first branch leading to a second port and a second branch leading to a third port. An angle between the first branch and the second branch is below ninety degrees (90°). The dielectric waveguide splitter enables millimeter-wave (mmWave) transmission between the first port and the second port while reducing feedback of the mmWave between the second and third port. Two Y-junction waveguides may be fabricated back-to-back to provide simultaneous bidirectional mmWave transmission at a single frequency.
Abstract translation: 一种系统，方法，装置和装置提供介质波导分路器/双向链路。 制造成第一Y形结波导的电介质基片，其中第一端口分为通向第二端口的第一支路和通向第三端口的第二支路。 第一分支和第二分支之间的角度低于九十度（90°）。 电介质波导分路器在第一端口和第二端口之间实现毫米波（mmWave）传输，同时减少第二端口和第三端口之间的mmWave的反馈。 可以背对背地制造两个Y形结波导，以在单个频率下提供同时双向mm波传播。
-
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.
-
Patent Agency Ranking
4.发明申请INKJET OR PEN BASED PRINTED PERIODIC DIRECTORS FOR MILLIMETER-WAVE LINKS ON FLEXIBLE SUBSTRATES 审中-公开喷墨或笔者印刷的敏感基板上的毫米波链接的定期指令公开(公告)号：US20150288048A1
公开(公告)日：2015-10-08
申请号：US14678751
申请日：2015-04-03
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Adrian J. Tang , Goutam Chattopadhyay , Choonsup Lee , Emmanuel Decrossas , Nacer E. Chahat
Abstract: A data link, comprising a substrate; and an ink structure printed and/or marked on a substrate, wherein the structure directs an electric, magnetic, and/or electromagnetic wave between two locations.
Abstract translation: 一种数据链路，包括基板; 以及在基板上印刷和/或标记的油墨结构，其中所述结构在两个位置之间引导电，磁和/或电磁波。
-
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.
-
6.发明授权公开(公告)号：US10680345B2
公开(公告)日：2020-06-09
申请号：US16223070
申请日：2018-12-17
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Nacer E. Chahat , Polly Estabrook , Brant T. Cook
Abstract: An antenna for dual-band or wide-band communication link. The antenna includes a patch array, arranged above a top ground plane, that includes one or more panels, each panel included one or more patch subarrays, and each patch subarray includes single patch elements made from metal. Each patch element includes: a flat rectangular radiation surface element into which a rectangular cutout is formed; an RF power feed point having a cylindrical shape that makes contact to the bottom side of the radiation surface element and feeds through a hole formed in the top ground plane for connection to the RF power; and a structural post having a cylindrical shape that contacts, at one end, the bottom side of the radiation surface element at a region of the radiation surface element where electric surface current is substantially smaller than any other region, and contacts the top ground plane at a second end.
-
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.
-
8.发明授权公开(公告)号：US09478843B2
公开(公告)日：2016-10-25
申请号：US14626757
申请日：2015-02-19
Applicant: California Institute of Technology
Inventor： Adrian Joseph Tang , Goutam Chattopadhyay , Nacer E. Chahat , Emmanuel Decrossas
CPC classification number: H01P5/188 , H01P5/12 , Y10T29/49016
Abstract: A system, method, device, and apparatus provide a dielectric waveguide splitter/bi-directional link. A dielectric substrate fabricated into a first Y-junction waveguide with a first port splitting into a first branch leading to a second port and a second branch leading to a third port. An angle between the first branch and the second branch is below ninety degrees (90°). The dielectric waveguide splitter enables millimeter-wave (mmWave) transmission between the first port and the second port while reducing feedback of the mmWave between the second and third port. Two Y-junction waveguides may be fabricated back-to-back to provide simultaneous bidirectional mmWave transmission at a single frequency.
Abstract translation: 一种系统，方法，装置和装置提供介质波导分路器/双向链路。 制造成第一Y形结波导的电介质基片，其中第一端口分为通向第二端口的第一支路和通向第三端口的第二支路。 第一分支和第二分支之间的角度低于九十度（90°）。 电介质波导分路器在第一端口和第二端口之间实现毫米波（mmWave）传输，同时减少第二端口和第三端口之间的mmWave的反馈。 可以背对背地制造两个Y形结波导，以在单个频率下提供同时双向mm波传播。
-
-
-
-
-
-
-
Search Results
8
records
(took 0.014 seconds)
