A structural grid is provided with continuous and discontinuous beam members coupled by splices, a front structure coupled to the structural grid, the front structure including a walkway and cables, a radome coupled to the front structure. The structural grid is coupled to a plurality of antenna subassemblies. The antenna subassemblies have a forward housing including an RF manifold coupled to a circulator, an aft housing coupled to the forward housing, containing a line replaceable unit that is serviceable or maintainable through the aft housing.

Modular active phased array

A management tree or nodes arranged hierarchically tree-like, respectively, is used to manage, contain and map information of a manageable device according to the SyncML DM protocol standard A management server can request from such a device may the means of a GET command information contained in a certain node of the management tree server The manageable device responses by transmitting the requested information of the management tree The inventive concept provides methods which allow to request information not only from one single node but from a plurality of nodes at the same time This leads to an efficient, time and cost saving management process

Method and device for management of tree data exchange

A phased array antenna design (2100) that is modular and scaleable in terms of beam quantity, coverage area, and receive sensitivity/transmit EIRP. A modulator array building block (1700) for an antenna array (2100) comprises: a plurality of antenna elements (102 A-N), each antenna element (102 A-N) operable to receive and output an electromagnetic wave signal, the antenna elements (102 A-N) arranged adjacent to each other, a plurality of antenna element interface assemblies (1306 A-H) ; each antenna element interface assembly (1306 A-H) coupled to one of the plurality of antenna elements (102 A-N) and coupling the received signal to an amplifier (104 A-N), and a plurality of circuit board assemblies (1300 A-H, 1906), the circuit board assemblies (1300 A-H, 1906) comprising: a plurality of amplifiers (104 A-N), each element (102 A-N), and a plurality of beamformers (106 A-N), each beamformer (106 A-N)coupled to an output of an amplifier (104 A-N), wherein the circuit board assemblies (1300 A-H,1906), antenna element interface assemblies (1306 A-H) and antenna elements (102 A-N) are arranged so as to form a module (1700).

Scaleable antenna array architecture using standard radiating subarrays and amplifying/beamforming assemblies

A communication system has a communication infrastructure and a gateway station communicating a communication signal to the communication infrastructure. An airplane having an antenna coupled to a processing circuit for establishing a plurality of multiple communication links corresponding to the communication infrastructure is used. The gateway station generates multiple datagrams from the television signal and transmits the multiple datagrams through the multiple dynamic links. The antenna receives the datagrams from the infrastructure and the processing circuit and reassembles the datagrams into the communication signal.

Communication system using multiple link terminals for aircraft

A deployable structure is disclosed. The deployable structure may include one or more slit-tube longerons; and one or more flat sheets coupled with the one or more slit-tube longerons. The one or more slit-tube longerons and the one or more flat sheets may be stowed by rolling the one or more slit-tube longerons and the one or more flat sheets together into a roll. In one embodiment, at least a portion of the one or more slit-tube longerons may be exposed when stowed. In another embodiment, the one or more slit-tube longerons may be manufactured from a shape memory material. These slit-tube longerons unroll into to a straight configuration when exposed to heat.

Large-Scale Deployable Solar Array

A spacecraft carries a deployable active antenna array panel(s) and a deployable solar array panel(s). In the stowed condition, the antenna array panel(s) is sandwiched between a side of the body of the spacecraft and the solar array panel(s). This stowed state prevents the antenna panels from becoming too cold by radiation, or too hot by insolation, in an intermediate orbit. The outermost solar panel preferably has its active surface facing outward, so that it can generate electricity in the intermediate orbit.

Spacecraft with active antenna array protected against temperature extremes

An array antenna especially adapted for spacecraft use includes a support frame made up of intersecting beams which form an "eggcrate" of square openings. A plurality of subarrays or radiating tiles are dimensioned to fit within the openings. Distortion of the support frame due to external forces, or due to expansion and contraction of the radiating tiles, is accommodated andor resisted by a four-point mounting arrangement for each tile. Each mounting is located on the center of the sides of the radiating tile, and the corresponding center of the side of the opening in which it fits. Each mounting consists of a thin, flexible mounting beam, extending parallel to the associated support beam, and fastened to the support beam at the ends of the mounting beam. The center of the side of the tile is fastened to the center of the flexible support beam, so expansion and contraction of the tile are compensated by bending of the flexible beam. Mutually opposing external forces acting parallel to the elements of the support frame are resisted by the longitudinal stiffness of the flexible beam and the diagonal stiffness of the tile.

Modular supertile array antenna

The satellite carries a first set of deployable panels (22a,22b; 32a,32b) forming an active aerial array, and a second set of deployable panels (42a,42b; 52a,52b) comprising solar generators. In the folded state, the panels of the aerial array are formed into a sandwich between one side of the body of the satellite and the solar generator panels. This folded state ensures that the aerial panels do no become too cold by means of radiation, or too hot by means of insulation, when the satellite occupies a position in an intermediate orbit. The solar panel which is furthest from the centre of the satellite pref. has its active surface directed outwards, so that it can generate electricity when the structures are folded and the satellite is lying in an intermediate orbit.

James Paul Foley

Papers

Spacecraft with active antenna array protected against temperature extremes

Modular supertile array antenna

Communications satellite with deployable aerials on either side of main body