Matches 1 - 50 out of 322 1 2 3 4 5 6 7 >
Match Document Document Title
7619581 Parabolic aerial with a conical diffusion disc for fill level radar  
Reflections on the aerial system of a fill level radar result in reduced measuring quality at short range. Small echo signals at short range can thus disappear in the noise. According to one...
7561113 Antenna system for level measurement with radar level measurement devices  
The invention concerns an antenna system for level measurement with a level measurement device with a wave guide ( 5 ) that runs axially and that either has on its rear side an arrangement ( 4 )...
7492324 Method and apparatus for receiving dual band signals from an orbital location using an outdoor unit with a concentric antenna feed  
A satellite system 10 having a first satellite 14 at a first orbital slot B has a first transponder 32 and a second generating a first downlink signal 44 B at a first frequency and a second...
7474254 Radar system with agile beam steering deflector  
A radar system including a base unit and a radar sensor. The sensor steers a beam in a scanning or tracking manner in both azimuth and elevation. Steering control in azimuth and elevation may be...
7453411 Antenna device and radar apparatus including the same  
An antenna device having a primary radiator that includes a transmitting section formed of a cylindrical waveguide extending parallel to a direction in which the front of the antenna device faces...
7405708 Low profiled antenna  
An antenna comprises: a main reflector being a body of revolution of arbitrary curve which axis diverges from axis of the revolution; a sub-reflector being a body of the revolution of arbitrary...
7394436 Multi-beam and multi-band antenna system for communication satellites  
An antenna system includes a reflector having a modified-paraboloid shape; and a multi-beam, multi-band feed array located at a focal point of the reflector so that the antenna system forms a...
7362279 Method and device for TV receiving and internet transreceiving on a satellite antenna  
A device for receiving satellite signals, associated to a parabolic dish ( 2 ) suitable for reflecting to a corresponding focus a first signal ( 25 ) at a first frequency and a second signal ( 35 )...
7271778 Antenna device and radar device using the same  
An antenna device having a primary radiator that includes a transmission portion formed of a cylindrical waveguide extending in a direction parallel to the frontward direction of the antenna...
7245265 Parabolic antenna of a level measuring instrument and level measuring instrument with a parabolic antenna  
This invention concerns a parabolic antenna with a parabolic reflector ( 2 ) having a parabolic reflector rim ( 20 ), a collar ( 9 ), which is positioned on the parabolic reflector ( 2 ), in...
7227501 Compensating structures and reflector antenna systems employing the same  
A compensating structure includes layers of non-uniform arrays of conductive patches configured to provide phase and/or amplitude distribution modification of feed primary patterns.
7167138 Triple-band offset hybrid antenna using shaped reflector  
A triple-band offset hybrid antenna having a shaped reflector is disclosed. The triple-band offset hybrid antenna includes: a shaped reflector reflecting a K/Ku bands RF signals received from a...
7119754 Receiving antenna for multibeam coverage  
The invention relates to a receiving antenna for satellite telecommunications. More specifically, the invention relates to an active antenna comprising a network of elementary sources which is...
7075495 Offset hybrid antenna using focuser  
A Ka-band offset hybrid antenna having a shaped focuser is disclosed. The Ka-band offset hybrid antenna having a shaped focuser, including: a shaped focuser for reflecting a received plane wave to...
7075492 High performance reflector antenna system and feed structure  
A reflector-feed assembly for a reflector dish antenna system includes a feeding waveguide and a reflector plate. The feeding waveguide is operable to support the propagation of a signal...
7053861 Taper control of reflectors and sub-reflectors using fluidic dielectrics  
A reflector antenna ( 100 ) includes a reflector unit ( 191 ) having at least one cavity ( 192 ) disposed in the reflector unit, at least one fluidic dielectric ( 180 ) having a permittivity and a...
7002528 Circularly polarized receive/transmit elliptic feed horn assembly for satellite communications  
The present invention provides a feed horn for use in an antenna assembly having a non-circular reflector. The feed horn is capable of transmitting and receiving circularly polarized signals. The...
6930653 Reflector and sub-reflector adjustment using fluidic dielectrics  
A reflector antenna ( 100 ) comprises a reflector unit ( 101 ) having a plurality of cavities ( 106 ), at least one fluidic dielectric having a permittivity and a permeability, and at least one...
6930648 Satellite receiver  
In a satellite receiver a feeder element is provided that includes several feeder horns on a microwave head (low noise block downconverter (LNB)) for distributing satellite signals from different...
6882323 Multi-beam antenna system with shaped reflector for generating flat beams  
A side-fed dual reflector antenna system ( 10 ) of the present invention overcomes the size cost and complexity limitations associated with conventional single and multiple reflector antenna...
6879297 Dynamically changing operational band of an electromagnetic horn antenna using dielectric loading  
The invention concerns a multi-mode electromagnetic horn antenna that can operate over two or more distinct bands of frequencies. The horn ( 100 ) includes a throat portion ( 102 ) and an aperture...
6876335 Arrangement for feeding a centrally focused reflector antenna  
An arrangement for feeding a centrally focused reflector antenna includes a waveguide ( 1 ), a dielectric field transformer ( 2 ) arranged on the waveguide ( 1 ) and a mounting platform ( 3 ) for a...
6873305 Taper adjustment on reflector and sub-reflector using fluidic dielectrics  
A reflector antenna ( 100 ) includes a reflector unit ( 101 ) having at least one cavity ( 106 ) disposed on the reflector unit, at least one fluidic dielectric having a permittivity and a...
6844862 Wide angle paraconic reflector antenna  
A wide-angle reflector antenna that substantially eliminates pattern blockage is provided. The reflector antenna includes a paraconic reflector and a feed supportably located in opposed relation to...
6801172 Optical-RF mixed antenna  
A first reflecting device is provided that reflects electromagnetic and optical signals to a common focus point. An electromagnetic receiver is positioned at the focus point to receive the...
6781555 Multi-beam antenna communication system and method  
A communication system and method for reconfigurably transmitting and receiving signals via a multi-beam reflector antenna array are disclosed. The multi-beam antenna system comprises a plurality...
6771225 Low cost high performance antenna for use in interactive satellite terminals  
The invention relates to a Interactive Satellite Terminal antenna system comprising an antenna to which is associated a feed horn. This antenna systems characterized in that it comprises an...
6750827 Dielectric waveguide antenna with improved input wave coupler  
An improved millimeter wavelength antenna assembly having an input signal coupler, a dielectric waveguide, and a rotatable drum is disclosed. The input signal coupler reduces VSWR return losses and...
6747608 High performance multi-band frequency selective reflector with equal beam coverage  
A high performance multi-band antenna reflector having low sidelobe and cross polarization levels, and a superior carrier-to-interference ratio has two concentric zones ( 12, 14 in a first...
6738650 Radiation shielding tri-band antenna adapted to provide dual band polarizations  
A radiation shielding apparatus for a wireless communication device operable in at least two cellular frequency spectrums includes a multi-band antenna operably associated with an electromagnetic...
6724349 Splashplate antenna system with improved waveguide and splashplate (sub-reflector) designs  
A splashplate antenna system configured using hybrid mode-matching techniques has improved secondary beam characteristics, including improved sidelobe performance, improved electric and magnetic...
6717552 Communications antenna system and mobile transmit and receive reflector antenna  
A reflector antenna adapted for use with a mobile platform, in particular with an aircraft. The reflector antenna includes an antenna aperture, a first signal processing subsystem located closely...
6664933 Multi-feed reflector antenna  
An antenna includes a reflector having a first axis, a second axis, a focal zone that is about parallel to the first axis, and a focal point located within the focal zone. A transmit feed is...
6661384 Mirror surface accuracy measuring device and mirror surface control system of reflector antenna  
Radiation field distributions of all mirror panels composing a main reflector are measured and held in advance, radiation field distributions of a reflector antenna having the main reflector are...
6657589 Easy set-up, low profile, vehicle mounted, in-motion tracking, satellite antenna  
A low profile, vehicle mounted, in-motion tracking, satellite antenna includes a pair of antenna assemblies mounted in parallel on a rotatable platform. Each antenna assembly includes two...
6642905 Thermal-locate 5W(V) and 5W(H) SSPA's on back of reflector(s)  
A microwave antenna for an aircraft including a reflector element with a front surface and a rear surface. A horn is mounted to the front surface of the reflector element and an orthomode...
6633264 Earth coverage reflector antenna for geosynchronous spacecraft  
A reflector antenna for use on a geosynchronous spacecraft or satellite for providing Earth coverage has a gain or directivity which is two or three dB greater at the edges than at the beam center,...
6621461 Gridded reflector antenna  
A method for broadcasting, a signal, and an antenna system are disclosed. The antenna system comprises a feed horn and a reflector. The feed horn provides a radio frequency (RF) signal. The...
6573873 Stepped horn with dielectric loading  
A horn for direct radiation or for use as a reflector feed is for operation at disparate frequencies. The horn has a conventionally LSE 1,0 distribution at the lower of the two frequencies, and...
6559807 Compact, lightweight, steerable, high-power microwave antenna  
A compact, lightweight, steerable, high-power, microwave weapon including a self-powered, steerable vehicle having at least one exterior antenna support surface, a self-powered, microwave radiation...
6496156 Antenna feed having centerline conductor  
An antenna feed horn assembly includes a circular feed horn having an electrically conductive wall with an edge defining a circular aperture. The antenna feed horn assembly further includes a...
6483475 Block-down-converter and multi-beam-antenna  
A multi-beam antenna includes a parabolic reflector, a block-down-converter, a support arm and a holding member. The block-down-converter is arranged such that a multi-primary radiator and a...
6480165 Multibeam antenna for establishing individual communication links with satellites positioned in close angular proximity to each other  
Antennas and multiplexer structures are provided for establishing individual communication links with satellites that are located at geostationary positions in close angular proximity to one...
6463282 Non-uniform multi-beam satellite communications system and method  
A satellite broadcast system and method, particularly useful for television signals, allows for local as well as nationwide broadcast service by allocating greater satellite resources to the more...
6445360 Antenna structure for fixed wireless system  
The invention involves a novel mechanical assembly incorporating, in a preferred embodiment, a technically advanced Cassegrain antenna design. The antenna achieves, in experiments, near theoretical...
6441797 Aggregated distribution of multiple satellite transponder signals from a satellite dish antenna  
An Out Door Unit (ODU) provides the capability to aggregate signals received from more than one satellite before providing the signals to a multi-switch for selection 0by an integrated...
6424892 Vehicle surroundings monitoring device  
A vehicle surroundings monitoring device in which reflection by a mirror is reduced to ensure the desired performance of distance measurement even in a short-distance range. The monitoring device...
6424312 Radiating source for a transmit and receive antenna intended to be installed on board a satellite  
The invention relates to a radiating source for transmitting and receiving, intended to be installed on board a satellite to define a radiation pattern in a terrestrial zone, said source being...
6417815 Antennas and feed support structures having wave-guides configured to position the electronics of the antenna in a compact form  
The present invention provides various wave-guides and support structures that are used in conjunction with feed structures to form compact antennas. Specifically, in one embodiment, the present...
6388637 Wide band, wide scan antenna for space borne applications  
A plurality of paraboloidal reflector cells are mounted side by side in a concave spherical array in the interior of a toroidal support structure. Groups of adjoining reflector cells are selected...
Matches 1 - 50 out of 322 1 2 3 4 5 6 7 >