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8169356 |
Anti-mask motion sensor
A motion sensing method and apparatus includes a housing enclosing a microwave motion sensor including an antenna, and a security system. The antenna may be a patch antenna which includes microwave...
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8164533 |
Horn antenna and system for transmitting and/or receiving radio frequency signals in multiple frequency bands
A horn antenna includes smooth-walls with multiple slope discontinuities. The horn antenna may have more than an octave bandwidth with a 2.25:1 bandwidth ratio to cover the frequencies of 20 GHz,...
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8125400 |
Compact antenna feed assembly and support arm with integrated waveguide
A feed assembly and feed support arm for parabolic antennas with circular or linear polarization is provided in a streamlined configuration. The feed assembly contains a septum polarizer with...
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8102324 |
Sub-reflector of a dual-reflector antenna
The aim of the present invention is a sub-reflector of a dual-reflector antenna comprising: a first end having a junction of a first diameter, adapted for coupling to the end of a waveguide,a...
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8009112 |
Feed assembly for dual-band transmit-receive antenna
A Ka/Ku-band transmitter-receiver comprises a tri-band feed of a Ka-band transceiver, in conjunction with an array of phase combined patch receiving, antennas that operate at the Ku-band frequencies.
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7982687 |
Ka/Ku outdoor unit configuration using a frequency selective surface
Methods, systems, and apparatuses for receiving signals from communications satellites are disclosed. An antenna unit for receiving signals transmitted from a plurality of communications satellites...
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7898491 |
Reflector antenna feed RF seal
A reflector antenna feed RF seal between an antenna base, a feed hub and a vertex plate. The RF seal formed via a generally annular gasket of compressible material adapted to seat around an outer...
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7733282 |
Reflector antenna
A reflector antenna includes a feed configured to always point during operation in a direction that opposes ingress of water into the feed, and a reflector having a truncated spherical reflecting...
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7719463 |
Reflectarray and a millimetre wave radar
The reflectarray comprises an array of patch elements (10-13). Each patch element has a cut ring shape formed of a conductive ring with at least one crossing gap. The outer diameter and inner...
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7710340 |
Reconfigurable payload using non-focused reflector antenna for HIEO and GEO satellites
An antenna system for generating and configuring at least one defocused beam is provided. The antenna system includes a reflector having a focal plane and a non-parabolic curvature for forming the...
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7667660 |
Scanning antenna with beam-forming waveguide structure
A scanning antenna with an antenna element having an evanescent coupling portion includes a waveguide assembly including a transmission line, adjacent the coupling portion, through which an...
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7642982 |
Multi-band circular polarity elliptical horn antenna
A relatively low cost, easy to install and aesthetically pleasing multi-band, multi-port digital video broadcast from satellite (DVBS) elliptical horn antenna designed as part of a reflector...
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7639980 |
Method and apparatus for receiving dual band signals from a common orbital location with an outdoor unit using a frequency selective subreflector and additional antenna feed
A system 10 that includes a first satellite 14 at a first orbital slot B includes a first transponder 32 generating a first downlink signal at a first frequency and a second downlink signal at a...
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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...
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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) for...
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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...
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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...
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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...
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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) at a...
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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...
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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 particular on...
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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.
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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...
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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...
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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...
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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...
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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...
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7034771 |
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...
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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...
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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...
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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...
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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 systems....
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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...
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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 series...
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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 permeability,...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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,...
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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...
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