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Patent Searching and Data


Matches 351 - 400 out of 2,775

Document Document Title
WO/2005/043562A2
An antenna is arranged to be mounted on a vehicle and to receive signals, such as television signals, from a geosynchronous satellite. In a preferred arrangement the antenna includes two or three linear arrays of antenna element rows. Th...  
WO/2005/039074A1
An apparatus for repeating a signal from a satellite using a microstrip patch array antenna is disclosed. The apparatus includes: a receiving unit for receiving the signal and amplifying the receiving signal; a radiating unit for radiati...  
WO/2005/038484A1
The inventive shipboard radar station comprises two radar channels operating in spaced frequency subranges. Each channel consists of an individual electronic scanning transmitting-receiving antenna array. Said antenna arrays are mounted ...  
WO/2005/034406A2
A method and system is disclosed for enhancing reception of wireless communication signals. A beam pattern including at least one set of beams is generated. Where the beam pattern includes at least two sets of beams, the beam sets may be...  
WO/2005/032169A2
The present invention provides in one embodiment channel allocation and polarization techniques for reducing cross sector communications interference in a multiple access wireless communications environment. In one embodiment, channel al...  
WO/2005/025109A2
A communication satellite cellular coverage pointing correction using uplink beacon signal is provided. A ground-based beacon transmits a monopulse tracking signal or a Traveling Wave Coupler (TWC) tracking signal to a specialized tracki...  
WO2004088787A3
A novel phased array antenna assembly is hereto presented. This antenna is adapted for reducing severe radiation hazards to the human body, and is useful for transmitting and receiving signals while taking into account the indoor electro...  
WO/2005/020462A2
The present invention provides in one embodiment channel allocation and polarization techniques for reducing cross sector communications interference in a multiple access wireless communications environment. In one embodiment, channel al...  
WO2004100308A3
In the first embodiment, the inventive antenna comprises four plates and four sections of a coaxial feeder. The central conductor of the first section of a coaxial feeder is connected to the first plate at a certain distance from a centr...  
WO/2005/018040A2
A multi-beam antenna (200, 204) comprises at least one curved surface (202), at least one dielectric substrate (16), and a plurality of end-fire antenna feed elements (14, 14.1) on the dielectric substrate (16). The at least one curved s...  
WO/2005/017559A2
A millimeter wave concealed weapons and contraband detection system. The preferred millimeter wave imaging equipment includes at least one millimeter wave frequency scanning antenna for collecting frequency dependent beams of millimeter ...  
WO2004095627A3
Each of a pair of antennas for broadcasting has multiple elements arranged vertically on the same tower. The antennas transmit circularly polarized signals of opposite polarization. The opposite circular polarization of the radiated sign...  
WO/2005/015690A1
An improved antenna array comprises the following features: a network (17) is provided by means of which at least two radiator groups (3.1, 3.2) are provided with a signal (Ain1, Ain2) having an amplitude that can be adjusted relative ea...  
WO/2005/011057A1
An antenna device (1, 1’, 1’’) comprising: a sheet-shaped support (2) which is folded along a fold-line (3-8, 80-83). The support (2) includes a first support (10-13) plane adjacent to said fold-lines (3-8, 80-83) and a second supp...  
WO/2005/004324A1
An optical control type microwave phase forming device comprising optical demultiplexers each for separating a ray of light emitted from each of light sources into two elements, optical frequency converters each for deviating one of the ...  
WO2004082071A8  
WO2004086563A8  
WO/2004/114706A1
The invention is directed to methods and apparatus for transmitting data between a first node and a second node in a communications network, for example a wireless network. The method comprises the steps of selecting a transmission chann...  
WO/2004/109856A1
A multi-beam lens antenna for individual communication with communication satellites spaced at small elongations. The multi-beam antenna comprises antenna elements (3) each of which is composed of a waveguide having an opening at the end...  
WO2004062177A3
A wireless system (30) minimizes nulls within the wireless system while simultaneously providing diversity. The system uses time or frequency offset on signals input to an antenna (40, 50, 60, 100) to minimize interference in regions of ...  
WO/2004/105182A1
There is disclosed an antenna device comprising a dielectric substrate (1) with first and second opposed surfaces. A conductive ground plane (2) is formed on a first area of the second surface of the substrate (1), leaving a second area ...  
WO/2004/100308A2
In the first embodiment, the inventive antenna comprises four plates and four sections of a coaxial feeder. The central conductor of the first section of a coaxial feeder is connected to the first plate at a certain distance from a centr...  
WO2003081718A9
The invention relates to antenna devices and transmitter-receivers for network notebooks. The inventive antenna device comprises a flat substrate (2) carrying at least two fanwise oriented directional flat antennas (3) and a commutation ...  
WO/2004/095627A2
Each of a pair of antennas for broadcasting has multiple elements arranged vertically on the same tower. The antennas transmit circularly polarized signals of opposite polarization. The opposite circular polarization of the radiated sign...  
WO/2004/091043A1
folded dipole antenna elements (2, 4) are generally parallel arranged at an interval shorter than 1/2 of the wavelength used. The antenna elements (2, 4) are connected to a combiner (16) through feeders (12, 14) having different lengths....  
WO2004034508A3
An apparatus, system and method for transmitting packets over a wireless network, wherein the packet identifies an antenna and/or antenna element (904) among a plurality of antenna and/or antenna elements (904) for transmitting the packe...  
WO/2004/088790A1
A phased array antenna system with variable electrical tilt comprises an array (60) of antenna elements (60L1) etc. incorporating a divider (44) dividing a radio frequency (RF) carrier signal into two signals between which a phase shifte...  
WO/2004/088787A2
A novel phased array antenna assembly is hereto presented. This antenna is adapted for reducing severe radiation hazards to the human body, and is useful for transmitting and receiving signals while taking into account the indoor electro...  
WO2004013930A3
A modular phased array antenna provides a reduction in the error signals that are introduced into beam signals by electromagnetic coupling that is inexpensive and does not cause an increase in weight in power consumption. A modular phase...  
WO/2004/086563A1
A Luneberg lens of monolayer structure or multilayer structure composed of a combination of two or more layers of different dielectric constants, the Luneberg lens produced by adding a blowing agent to a resin mixture obtained by mixing ...  
WO/2004/084347A1
A wireless telecommunications device is disclosed including a plurality of wireless antennas, each respectively for transmitting and/or receiving wireless signals into a predetermined sector of an omnidirectional space. A mounting struct...  
WO/2004/084341A2
An apparatus and associated method are disclosed which form a multiple beam forming network using time division multiplexing. Instead of having several parallel sets of beam forming network hardware running at a given sampling clock rate...  
WO/2004/082071A1
A system for providing independent or co-spatial antenna patterns for independent inputs from a basestation comprises a phased-array antenna having a plurality of antenna columns radiating generally redundant antenna beam patterns. The a...  
WO/2004/073206A1
The invention is directed to a method of communicating between a first node including a plurality of antennas and a second node, the method comprising the steps of: transmitting a signal from the first node to said second node using each...  
WO/2004/073263A1
A wireless network has nodes, which can be accessed by wireless terminals via wireless access links, coupled via wireless transit links using multiple directional antenna beams. The nodes are self-organizing and self-adapting as nodes ar...  
WO/2004/073114A1
The invention is directed to a wireless network arrangement in which nodes comprise multi-faceted multi-beam antennas and in which wireless backhaul is provided using those multi-faceted multi-beam antennas. In particular, the invention ...  
WO/2004/073111A1
An N-element rotational-symmetric array antenna can generate N fixed pencil-beams simultaneously with an omnidirectional beam. An N x N Butler matrix can be used to feed the array antenna, using fewer than N input ports of the Butler mat...  
WO/2004/073115A1
The invention provides a multiple beam antenna and a method of fabricating such an antenna. The multiple beam antenna comprises: a flexible substrate having a conductive layer; a plurality of directional antennas; and a plurality of elec...  
WO2004021508A3
A directive antenna having plural antenna elements is arranged in a parasitic antenna array. Frequency selective components are connected to a first subset of the antenna elements. Weighting structures are connected to a second subset of...  
WO/2004/073107A1
An antenna arrangement for forming an omni directional beam comprising a plurality of antenna elements arranged around a structure, wherein each said element or collection of elements forms a directional beam having a polarisation which ...  
WO2004017459A9
A combined antenna system used for both vehicles and structures, whereby a satellite antenna is placed concentrically around a conventional mast antenna that can be used for both conventional FM radio and also terrestrial retransmission ...  
WO/2004/061475A1
The invention relates to an angular resolution antenna system comprising only two radar sensors (8, 9) with separate transmitter and receiver antennas. The primary beam direction and the beam opening width of the receiver antennas (1, 21...  
WO/2004/062177A2
A wireless system (30) minimizes nulls within the wireless system while simultaneously providing diversity. The system uses time or frequency offset on signals input to an antenna (40, 50, 60, 100) to minimize interference in regions of ...  
WO/2004/057366A1
A method for radar-based gauging of the level of a substance in a tank (13) having at least one interfering structure (16a-c), comprises the steps of: (i) transmitting a microwave signal in a plurality of radiation lobes (15a-b; 15a-d), ...  
WO/2004/051796A1
The invention relates to a two-dimensional antenna array which is characterised by the following: at least two vertically extending gaps (5a, 5b) are present in said array; a radiator arrangement is respectively provided in each of the a...  
WO/2004/046752A1
The invention relates to a method for creating a radar image by means of a frequency-modulated continuous wave radar, comprising the following steps: a transmission signal having at least two frequency ramps that are provided with differ...  
WO/2004/044610A1
A transmit and receiving system including a first array including a first plurality of antenna elements disposed to provide a transmit antenna. The system further includes a second array having a second different plurality of antenna ele...  
WO2002012916A9
A passive MMIC monopluse comparator includes a plurality of lumped element hybrids having pi an T filter structures. In one embodiment, a first hybrid receives first and second downcoverted signals and provides a first output signal to a...  
WO/2004/040694A1
The invention concerns a system comprising a device for focusing electromagnetic waves, and a multiple-beam antenna. The antenna comprises: a photonic bandgap material (20) having at least one band gap, at least one periodicity defect (3...  
WO/2004/040696A1
The invention concerns a multibeam antenna comprising: a photonic bandgap material (20) having at least one band gap; at least on e periodicity defect so as to produce at least one narrow bandwidth inside said at least one band gap of sa...  

Matches 351 - 400 out of 2,775