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Patent Searching and Data


Matches 651 - 700 out of 2,866

Document Document Title
WO/2001/015477A1
A system and method are disclosed for dynamically sizing sectors of a multi-sectored radiation pattern. The disclosed invention teaches the use of multiple narrow beams composited to form a radiation pattern. Signals associated with each...  
WO/2001/015273A1
The invention relates to a multibeam radar sensor. In said sensor, an elastically configured fixing device, together with a spacer secure the polyrods at a predetermined distance from one another, preferably ranging between 0 mm and 0.2 ...  
WO/2001/015267A1
A personal communications apparatus comprises an elongate body (202) incorporating an antenna diversity arrangement in which first and second antennas (102A, 102B) are located at opposite ends of the body. In one embodiment a microphone ...  
WO/2001/013461A1
A diversity antenna structure for a wireless communication device (10) for receiving and transmitting communication signals is provided. The antenna structure including a dielectric substrate (14) defining a pair of major surfaces and ha...  
WO/2001/013466A1
This invention relates to a method of canceling interference. A mobile communication system using a smart antenna can resolve various multipath propagation interference with the method. The method includes steps: performimg beam-patterni...  
WO/2001/011723A1
The invention relates to baseband processing method based on a smart antenna and interference cancellation, comprising A. performing channel estimation, obtaining a response of the channel; B. patterning beams using smart antenna based o...  
WO/2001/011722A1
Is meant for the creation of directional antennas. The device contains dielectric elements connected in globe-shaped construction (2, 3), the distribution of dielectric inside which corresponds to the distribution of dielectric constant ...  
WO/2001/009975A2
The invention relates to a radar sensor and a radar antenna for monitoring the environment of a motor vehicle. A compact construction is achieved by the planar array of both the control circuit (8) and the radar antenna (4), so that the ...  
WO/2001/004993A1
The invention provides an arrangement for use in an antenna array for transmitting and receiving at least one frequency in at least two polarizations, comprising at least two antenna elements (210-208), where each antenna element is inte...  
WO/2001/003242A1
This invention is a broadband digital communication system that uses a mulitplicity of interconnected base stations (20) with multi-beam antennas. The multi-beam antennas consist of lenses (47) and reflectors (40) with an array of optica...  
WO/2001/003241A1
This invention is a broadband digital communication system that uses a multiplicity of interconnected base stations (20) with multi-beam antennas. The multi-beam antennas consist of lenses (47) and reflectors (40) with an array of optica...  
WO/2001/001520A1
A configurable antenna (100) includes a main reflector (102) and at least two subreflectors (104). Each of the subreflectors (104) is configurably disposed relative to the main reflector (102) to provide an active subreflector (106) for ...  
WO/2001/001582A2
The physical space available to install both a sector antenna and an adaptive, phased-array antenna at a cellular radio telecommunications base station may be significantly reduced, and the costs associated with manufacturing, installing...  
WO/2000/079300A1
A hand-held ultrasound probe system includes integrated electronics within an ergonomic housing. The electronics includes control circuitry, beamforming and circuitry transducer drive circuitry. The probe electronics communicates with a ...  
WO/2000/076027A1
Axially symmetric gradient lenses, and antenna systems employing same. In one example, a lens includes an inner volume having one or more inner dielectric constants, and an enclosure having an outer surface that encloses the inner volume...  
WO/2000/076028A1
An antenna system including a lens mounted on a conductive ground plane or conductive ground enclosure capable of radiating symmetric or asymmetric radiation profiles. The lens may be a gradient lens with a dielectric constant that varie...  
WO/2000/076030A1
Multimode sectored antenna systems for use in wireless communication systems. In one example, the sectored antenna systems provide the capability of flexibly allocating a number of data carriers having different data transporting capacit...  
WO2000034740A3
The invention relates to a radio measuring method and to auxiliary means thereof for carrying out the method, said auxiliary means being at least one transportable transmitter and at least one transportable receiver. According to the inv...  
WO/2000/067345A1
The invention concerns an antenna capable of receiving beams from telecommunication satellites on stationary orbit near the equator. The continuous concave reflecting surface (11) of the antenna reflector (1) has an equation deduced from...  
WO/2000/065372A2
A wireless tracking system consists of a wireless target including a wireless communication system for transmitting a data packet over a communication path, and a locating station for determining a position of the target. The data packet...  
WO/2000/064007A1
A method and system for determining and using beamform factors for forming beams. Maximum and minimum dependent beamform factors (26 B) of an optimum beam are determined from initial beamform factors and an initial parent population of c...  
WO/2000/060885A1
A high capacity point-to-multipoint two-way wireless communication system. In one example, the system employs a dielectric lens-based sectored antenna at a base station to communicate with remote stationary subscriber stations which are ...  
WO/2000/060767A1
A repeater (201-204) includes a filter that passes (f1) alone while a base station (205) uses frequencies (f1, f2 and f3). As a result, the passed frequency (f1) can reach farther so that cells (207-210) using a particular channel (frequ...  
WO/2000/059072A1
A beamforming method and device for adaptive antenna arrays containing several antenna elements (1.1 - 1.M) in a frequency duplex system downlink, whereby the antenna weights (W¿k?(f¿S?)) are determined for the antenna elements (1.1 - ...  
WO/2000/059135A1
A satellite and ground station (Figure 2) distributed multi-beam communication system, method and computer program product implements a beam forming operation (Figure 6) at the ground station. A ground-based beam forming network is inclu...  
WO/2000/057579A1
A communication satellite transmitting system (14) includes communication signal amplifiers (32) (e.g. traveling wave tube (TWT) amplifiers) with outputs that are multiplexed among multiple transmit horns (36), each of which transmits a ...  
WO/2000/054369A1
An antenna apparatus for generating transmit signals, receiving return signals based on the transmit signals, and/or receive transmitted signals from other sources is provided. The antenna apparatus includes a beam forming system and a b...  
WO/2000/048272A1
This invention relates to an antenna array system. A problem with antenna array systems is that they provide rather inefficient use of hardware and have inflexible resource allocation. The invention provides a flexible antenna array syst...  
WO/2000/041267A1
A sectored antenna system has one or more dielectric lenses, each having a surface and two or more antenna feed devices tilted non-parallel to the lens surface and preferably angled in a V pattern. At least one of the feed devices radiat...  
WO/2000/039943A1
A radio transceiver station avoids the problems of prior devices that either do not use multi-beam antennas or use multi-carrier power amplifiers, permitting signals from several transceivers to be selectively directed to one antenna lob...  
WO/2000/038079A1
The present invention introduces a new approach to optimization problems based on a previous theoretical work on extinction patterns in macroevolution. We name them Macroevolutionary Algorithms (MA). Unlike population-level evolution, wh...  
WO/2000/036705A1
Systems and methods for providing antenna beams having reduced grating and side lobes when steered off of the antenna broadside are disclosed. According to the present invention an arrangement of antenna elements suitable for use in gene...  
WO/2000/034740A2
The invention relates to a radio measuring method and to auxiliary means thereof for carrying out the method, said auxiliary means being at least one transportable transmitter and at least one transportable receiver. According to the inv...  
WO/2000/033419A1
An antenna system that includes a plurality of mounting plates arranged in a generally circular configuration. Each mounting plate has an inside surface and an outside surface. Each antenna element has a high frequency end and a low freq...  
WO/2000/026988A1
A first pattern formation section forms an array antenna pattern constituted of all antennas, and second and third pattern formation sections (7, 8) forms an array antenna pattern constituted of a group of antennas by using frequencies d...  
WO/2000/022696A1
A Rotman lens (12, 13) includes a first insulating layer (26) having a high dielectric constant and a second insulating layer (46) having a low dielectric constant. Metalization provided on the first insulating layer includes a lens port...  
WO1999052181A3
A transmitter is provided for simultaneously transmitting a plurality of signals in a plurality of directive beams to corresponding destination stations, each destination station located in a separate fan within a service area. The trans...  
WO/2000/019559A1
A planar antenna having a simple thin structure, a small transmission loss in a high frequency band including sub-millimeter and millimeter waves, and a high aperture efficiency, produced with high productivity and at low cost, and reali...  
WO/2000/014826A1
A dielectric resonator antenna (100) having a resonator (104) formed from a dielectric material mounted on a ground plane (108). The ground plane (108) is formed from a conductive material. First and second probes (112, 116) are electric...  
WO/2000/011752A1
An efficient multi-beam antenna system (10) for use with a high capacity communications satellite or spacecraft (11) that maximizes frequency re-use of the allocated frequency spectrum. The antenna system (10) has first and second offset...  
WO/2000/011751A1
An antenna system (30) includes a lens (40, 50) and a plurality of non-uniform feed elements (42, 52). The non-uniform feed elements (42, 52) are coupled to the lens system and operable to shape each of a plurality of beams (32) to match...  
WO/2000/011754A1
A two-dimensionally steered antenna system (40) includes a planar lensing system (64, 94) operable to focus signals received from a plurality of ground-based cells (20). A first steering system (66) is operable to steer a beam (32) for e...  
WO1999060656A3
A low-cost spherical reflector and a mechanically scanned antenna system utilizing such reflectors. The system employs one or more (substantially similar) primary spherical reflectors (each a truncated spherical surface), each having an ...  
WO/1999/067854A1
The invention relates to an antenna system comprising a number of radiating elements which are arranged in the shape of a dipole field and serve to generate a plurality of lobes of a main antenna. Some of the radiating elements of the di...  
WO/1999/066596A1
A compact RF monopulse receiver circuit having a relatively low noise figure which is particularly useful for operation in the millimeter wave frequency range is described. The compact monopulse receiver finds use in small projectile and...  
WO/1999/060656A2
A low-cost spherical reflector and a mechanically scanned antenna system utilizing such reflectors. The system employs one or more (substantially similar) primary spherical reflectors (each a truncated spherical surface), each having an ...  
WO/1999/060661A1
The invention concerns a device for transmitting and receiving microwaves comprising a planar radiating element. Said device is characterised in that the radiating element (60) has, for transmitting and receiving, substantially orthogona...  
WO/1999/060657A1
The invention concerns a station having an antenna system comprising a housing (15) for fixing it to a support. Said antenna system may consist of one or several radiating slots. It is designed for transmitting, in one first direction su...  
WO1999036992A9
An array antenna system for forming a plurality (e.g. 64) independently steered beams comprising an array of antenna elements (12), a first and a second plurality of series feed signal paths (20, 26), a plurality of phase shifters (24), ...  
WO1999044307A3
Antenna-gain diversity is obtained in the following manner. A first and a second antenna element (A1, A2) are electro-magnetically coupled. A switchable antenna-coupler (SAC) is switchable between: a first antenna-coupling state (S1) in ...  

Matches 651 - 700 out of 2,866