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Patent Searching and Data


Matches 401 - 450 out of 2,800

Document Document Title
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...  
WO/2004/040930A1
Systems and methods for use in CDMA antenna systems are provided in which signals each having a common overhead component are transmitted on a set of adjacent beams of a sector with a micro-timing offset between signals transmitted on ad...  
WO/2004/040695A1
The invention concerns a frequency multiband antenna comprising: a photonic bandgap material (142) having at least one band gap, one single periodicity defect (156) of the bandgap material so as to produce several narrow bandwidths withi...  
WO2003100906A3
Systems and techniques are disclosed wherein for generating a beam from an antenna. The antenna includes an antenna feed with a first surface having a feed network and a second surface supporting one or more radiating elements. The anten...  
WO2003107577A3
Methods of scheduling optimization of communications used with Wireless Local Area Netwwork (WLAN) equipment that employs steerable directional antennas (121). The methods may use and are compatible with Media Access Control (MAC) layers...  
WO/2004/034508A2
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...  
WO2003107474A3
An antenna array is disclosed which a plurality of sub-arrays (12A, 12B, 12C) are provided, each including a respective plurality of antenna elements (14) associated therewith. One or more shared antenna elements (16 AB) are shared by so...  
WO/2004/030239A1
The present invention disclosed a smart antenna and a method and a device for forming beam of the smart antenna. Said beam forming method includes: multipath scanning of receiving signals with discrete beams to obtain multipath delay inf...  
WO/2004/021513A1
The invention refers to a method for enhancing the ratio between the main lobe (5) and grating lobes (7) in an antenna array (1) comprising a number of n antenna elements (2). The method comprises the steps of; receiving analog signals o...  
WO/2004/021508A2
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/2004/017459A1
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/2004/015812A1
An antenna system (10) for providing network access services to wireless users generates at least a first (62) and a second (64) antenna beam, where the second antenna (64) beam is movable with respect to the first. Additional antenna be...  
WO/2004/013930A2
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/2004/010534A1
A multi-beam antenna (100, 128, 132, 136, 144) comprises an electromagnetic lens (102, 102.1), at least one first antenna feed element (104, 14), at least one second antenna feed element (106, 14), and a selective element (112) located b...  
WO/2004/010724A1
The invention relates to a telecommunications radio system for mobile communication services. More specifically, the invention relates to covering large sectorized areas for mobile communication services.  
WO2003063299A9
An antenna having a tiled architecture with overlapping subarray in two dimensions is disclosed. Each tile has two orthogonal ports and there is no physical interconnection between adjacent tiles. The outputs are coupled to individual re...  
WO2003098738A3
There is disclosed a dielectric resonator antenna array comprising three dielectric resonator elements (2) each having a feed (5, 7) for transferring energy into and out of the dielectric resonator element (2), each element (2) being con...  
WO/2004/001902A1
The invention concerns a device comprising a first radiating element operating in a first frequency band F1, consisting of four dipoles (1, 2, 3, 4) in square arrangement and a second radiating element (23) operating in a second frequenc...  
WO/2003/107474A2
An antenna array is disclosed which a plurality of sub-arrays (12A, 12B, 12C) are provided, each including a respective plurality of antenna elements (14) associated therewith. One or more shared antenna elements (16 AB) are shared by so...  
WO/2003/107577A2
Methods of scheduling optimization of communications used with Wireless Local Area Netwwork (WLAN) equipment that employs steerable directional antennas (121). The methods may use and are compatible with Media Access Control (MAC) layers...  
WO/2003/107479A1
This invention relates to antennas (26, 28, 30 32, 34) comprising an integrated array of antenna elements (36). More particularly, the invention relates to antennas (26, 28, 30 32, 34) in which the array of antenna elements (36) can be r...  
WO2003077358A3
An adaptive antenna (120) used in a receive only mode with a separate transmit antenna such as in a handheld wireless device (100). The transmit antenna may be integrated with the receive array by utilizing a horizontally polarized trans...  
WO2002007332A3
A phased array antenna includes an antenna housing having a subarray assembly that supports beam forming network modules and an array face defining a ground plane substantially orthogonal to the subarray assembly. A plurality of millimet...  
WO/2003/100906A2
Systems and techniques are disclosed wherein for generating a beam from an antenna. The antenna includes an antenna feed with a first surface having a feed network and a second surface supporting one or more radiating elements. The anten...  
WO/2003/098738A2
There is disclosed a dielectric resonator antenna array comprising three dielectric resonator elements (2) each having a feed (5, 7) for transferring energy into and out of the dielectric resonator element (2), each element (2) being con...  
WO/2003/093756A1
The invention relates to a method for the transmission of user data (N), wherein user data is transmission from a first aeroplane (1) to a relay-aeroplane (4) for re-transmitting to another aeroplane (2). The user data is prepared for th...  
WO2002031915A3
A phased antenna array (20) generates a first field of view (42) and a second field of view (45). First and second motors (26, 29) are coupled to the phased antenna array to rotate the first and second fields of view about first and seco...  
WO/2003/090313A1
ABSTRACTA transceiver (20) for a millimeter wave signal, consisting of a PCB (140) having PCB microstrip lines (141) and PCB waveguide apertures (159), and one or more transmitter modules (22) and one or more receiver modules (24, 26, 28...  
WO2002058186A3
A communication system (10) has a base station having an adaptive antenna with a plurality of main array antenna elements for generating a plurality of communication beams. The system further includes a gateway station coupled to the bas...  
WO2003023895A3
An adaptive antenna signal identification process to provide increased interference rejection in a wireless data network such as a wireless Local Area Network (LAN) (11-1, 11-2), The adaptive antenna (20-1, 20-2)is located at an access p...  
WO/2003/085776A1
A combination of near omni-directional antennas and internal patch antennas, all built into an access point in accordance with FCC requirements. Typically a printed antenna array is used for the near omni-directional antenna, and the int...  
WO2003007488A3
The present invention relates to a method and apparatus for selectively receiving a radio frequency (RF) signal which utilizes an array of antenna elements (101) for receiving the RF signal, a navigational controller (105) for determinin...  
WO/2003/083991A1
The present invention relates to dielectric resonator antennas comprising at least two dielectric resonator elements (2, 2) having a half-split or quarter-split configuration and arranged in a back-to-back configuration one on either sid...  
WO/2003/083505A1
An efficient digital wideband waveform generation and signal processing system for multi-beam electronically scanned antenna array (ESA) radar systems. The digital waveform generator (50) first produces a series of waveform phase angles ...  
WO/2003/081718A1
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/2003/081805A1
A transmitter/receiver comprises reception beam formation units (1041 - 104M) that form a plurality of reception beams, and transmission beam formation units (1131 - 113J) that form a plurality of transmission beams. The transmitter/rece...  
WO2003019717A3
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 (410) suitable for use i...  
WO/2003/077358A2
An adaptive antenna (120) used in a receive only mode with a separate transmit antenna such as in a handheld wireless device (100). The transmit antenna may be integrated with the receive array by utilizing a horizontally polarized trans...  
WO2003023436A3
A method and system for are provided for detecting one or more radar targets of interest in the presence of jamming signals. A plurality of sub-arrays are formed from an antenna array. Sub-array beams are adaptively formed so as to point...  
WO2002014891A9
A radar detection process includes computing a derivative of an FFT output signal to detect an object within a specified detection zone. In one embodiment, a zero crossing in the second derivative of the FFT output signal indicates the p...  

Matches 401 - 450 out of 2,800