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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 ...
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WO/2004/097981A1 |
An antenna device comprises a first radiation electrode (12), which has an open-circuit end (12a) and a short-circuit end (12b) that is connected to a ground (22), and which is coupled to a feeding point (16) with a feeder line (14). The...
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WO/2004/098070A2 |
A communication device (10) and a corresponding method are arranged for changing the radiation pattern of an antenna (14), where the radiation pattern of the antenna (14) is set to a half-space pattern if the communication device (10) is...
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WO/2004/095637A1 |
A method and apparatus for improving antenna efficiency. A non-grounded conductive object is placed near an antenna. An insulative layer lies between the object and the antenna. The antenna used is preferably a multiband antenna, such as...
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WO/2004/093245A2 |
An electronic scanning radio direction finding system (1) for accurate direction finding of radio frequency signals using singly or doubly flared cylindrical reflectors (2) surrounded by a circular array of inwardly facing feed horns (9)...
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WO/2004/091050A1 |
The invention relates to an improved antenna which comprises at least one dipole or a dipole-like emitting device (11) and is characterised in that the dipole-like emitting device (11) is touchlessly associated to a reflector (3) or to a...
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WO/2004/091048A1 |
A radiowave lens antenna device integrally constituted of a hemispherical Luneberg lens made from a dielectric material; a reflection plate with a larger size than the diameter of the lens, the reflection plate being provided at a cross-...
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WO/2004/091051A1 |
Square waveguides (9a, 10a) and square waveguides (9b, 10b) are symmetrically formed and a waveguide type polarizer (13) is installed below the level of a waveguide type polarizer (8). This provides an effect which enables installation s...
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WO/2004/088793A1 |
This invention relates to a low-profile lens antenna. In particular, this invention relates to a low-profile lens antenna for use in a depression in a surface, e.g. a concavity in the ground. A low-profile lens antenna is provided that c...
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WO/2004/086560A2 |
The invention relates to improved terahertz radiation sources and associated methods. A terahertz radiation source is described, comprising: an emitter (202) comprising a semiconductor material (12) ; a pair of electrodes (204a, b) on a ...
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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 ...
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WO/2004/073102A2 |
A lens antenna device for mobile communications has an antenna having a spherical Luneberg lens or a hemispherical Luneberg lens with a reflector and further having a primary emitter and a support arm for the emitter, a cover for coverin...
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WO/2004/070872A1 |
A miniaturized planar multi-band antenna for HF or microwave frequencies (PIFA) is disclosed, which operates by means of a metal surface (4) defining a ground potential of the application. The operating principle is based on at least two...
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WO/2004/070875A1 |
The invention relates to a multiband antenna array for mobile radio equipment, comprising a planar patch antenna (1) that has at least two resonances (1.1 and 1.2) and is provided with a connection to ground (1.M) and a high-frequency in...
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WO/2004/068635A1 |
Linear elements (101a-101d) are conductors each having an element length L1 of a half wavelength and disposed in a rhomboidal form. A delay element (102a) and a delay element (102b) are conductors each having a full length of 1/4 wavelen...
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WO/2004/068636A1 |
A small and compact lens antenna system in which a radio wave having a large incident angle from a circulating satellite as well as a geostationary satellite can be received without reducing the gain by combining a hemispherical lens and...
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WO2004057698A9 |
The disclosed embodiments of antenna elements and antenna element arrangements provide a generally low profile, improved isolation, and providing a larger bandwidth. Certain disclosed antenna elements provide a reduction in the footprint...
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WO/2004/066442A1 |
An antenna element for an array antenna comprises a transmission line (1) passed through a ground plane (3), connected at an excitation point (8) to a flat, conductive, helical excitation element (6) mounted on a dielectric substrate (4)...
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WO/2004/066439A1 |
Antenna arrangement for a portable communication device, and portable communication device comprising such an antenna arrangement (10) built-in, wherein said antenna arrangement (10) comprises antenna patches (12, 14) separated by a gap ...
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WO/2004/064195A1 |
A multiband antenna includes: a helical coil for transmitting/receiving a double radio wave; a dielectric member formed on an inside of the helical coil; a frequency changing portion formed on an inside of the dielectric member to adjust...
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WO/2004/064194A1 |
An array antenna device (100) includes an excitation element (A0) for receiving a radio signal transmitted, two non-excitation elements (A1, A2), and two variable reactance elements (12-1, 12-2) connected to the non-excitation elements (...
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WO/2004/062034A1 |
It comprises an upper case (11) having a speaker (14) and a display screen (15), a lower case (12) having a keyboard (18) mounted thereon, an antenna (16) attached to the upper end of the upper case (11) or the lower end of the lower cas...
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WO/2004/059786A2 |
An antenna having an antenna cup (210) and a helical element (200) mounted in the antenna cup. The antenna cup has a side wall extending from a base thereof towards an open end thereof, the side wall having a plurality of slots formed th...
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WO/2004/057702A1 |
The invention provides a system for implementing a high capacity MIMO system with high throughput which will ensure an eigenmode rich channel largely irrespective of the environment. In conventional MIMO systems, the environment can subs...
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WO/2004/051803A1 |
A resonance element array (200) is disposed between a primary radiator (1) and a lens (3). The resonance element array (200) comprises resonance elements each consisting of a linear conductor and variable reactance circuits arranged on a...
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WO2003094285A9 |
A directional antenna is pointed based on a ranking process. The ranking process of choice uses both ES/NO and Pilot Power parameters as measured from a pilot signal for best overall system performance in the forward and reverse links. U...
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WO/2004/047220A1 |
An antenna (11) includes a patch antenna element (22) capacitively coupled to a load patch (27). A switch (33) connects the load patch (27) to one of one or more strip lines (35, 37, 40), each of which has a different length. Each strip ...
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WO/2004/042938A2 |
An antenna array formed an a deformable dielectric material or substrate includes a center element and plurality of radial elements extending from a center hub. In the operative mode, the radial elements are folded upwardly into an appro...
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WO/2004/042947A1 |
A communication terminal that, even when laid on a metallic plate, can maintain good reception sensitivity is provided without any necessity of altering body size or design. A board (125) connected an antenna (107) is disposed within a l...
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WO/2004/040689A2 |
A directional antenna having a number, N, of outlying monopole antenna elements. These monopole elements are formed as a first upper conductive segment on a portion of a dielectric substrate. The array also includes the same number, N, o...
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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...
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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...
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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...
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WO/2004/038861A1 |
A monoconical antenna comprises a generally conical hollow formed in one end of a dielectric body, a radiation electrode formed on the surface of the hollow, and a ground conductor formed closely and generally parallel to the other oppos...
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WO/2004/038862A1 |
An antenna device having a substantially conical conductive member erected in a substantially perpendicular direction and having upper and lower sides opened around a substantially circular micro strip patch added to an upper side of a s...
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WO2004019443A9 |
A communication system including an antenna array with feed network coupled to communication electronics. In one example, a communication subsystem comprises a plurality of antennas each adapted to receive an information signal and a plu...
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WO/2004/032282A1 |
An antenna arranged such that a disc-like radiation plate (1) provided facing a ground plate (2) and having a diameter substantially equal to half-wave electrical length is provided, at the circumferential part thereof, with a first feed...
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WO/2004/027921A2 |
An antenna assembly includes at least two active or main radiating omni-directional antenna elements (100-1, 100-2) arranged with at least one beam control or passive antenna element (115) used as a reflector (305). The beam control ante...
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WO/2004/027924A1 |
In order to reduce the SAR value in a wireless communication device (MP), an additional, current-conducting corrective element (CE1) is coupled to and configured in relation to the printed board (LP) and the antenna (AT1) such that the a...
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WO2002063711A9 |
A system and method for mounting unprotected microwave radios and protected microwave radio units separately and at a distance from parabolic antennas (80). The microwave radios remain unmodified in all mounting configurations.
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WO/2004/025778A1 |
The present invention consists of an antenna comprising at least two radiating structures (110,111) (100,113), said radiating structures taking the form of two arms, said arms being made of or limited by a conductor, superconductor or se...
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WO/2004/025547A1 |
An antenna device for preventing communication failure by reducing the sub communicatable region formed around an antenna coil portion of a reader/writer. The antenna device (200) is provided to a reader/writer (20) for information commu...
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WO/2004/025554A1 |
A RFID tag or label comprises a RFID tag module (comprising an electronic identification circuit and a coupling means) and an antenna structure coupled to the coupling means. The RFID tag module is separate from, separable or arranged to...
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WO/2004/021511A2 |
The present invention relates to a portable communication device, an antenna arrangement and a case for a portable communication device. The portable communication device comprises a casing including a first in-built driven antenna eleme...
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WO/2004/017454A1 |
A method and a system for transforming between one or more point type sources and a line source in a transmission line structure. A transmission line path controller is inserted between a first parallel-plate waveguide section and a seco...
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WO/2004/017457A2 |
Antenna devices and apparatuses using the antenna devices are disclosed. In one embodiment, the antenna device includes a first plate structure (22(a)-22(c)) and a second plate structure (24(a)-24(c)).A conductive member (16,18) is adapt...
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WO/2004/015813A1 |
The invention relates to an antenna diversity comprising a first and a second antenna element where the first antenna element is operated in an active mode whereas the second antenna element is operated in a parasitic mode. The present i...
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WO/2004/013935A1 |
Using two simple antennas with different frequencies of operation combined into an antenna arrangement a directional radiation pattern is obtained for both frequencies of operation. This is achieved by placing the antennas such that the ...
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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...
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WO/2004/008575A1 |
A method and apparatus are disclosed for forming an image from millimetre waves. A field of view scanned using two geometrically orthogonal, intersecting copolarized fan beams (110, 120) to receive millimetre wave radiation. The received...
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