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WO/1997/032360A1 |
A single antenna assembly receives both direct broadcast satellite signals (DBS) and terrestrial broadcast signals, such as local VHF and UHF television channel broadcasts. The assembly includes an electromagnetic signal reflector for re...
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WO/1997/032357A1 |
The invention concerns a head-lamp with an integrated microwave antenna, the head-lamp comprising a rotationally symmetrical paraboloidal reflector (21) and the microwaves being radiated in a directly lateral manner. To that end, an elec...
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WO/1997/022158A1 |
A device for scanning in a scanning axis (110) in a scanning plane includes a periodic array of conductive plates (170) disposed along the scanning axis, each conductive plate being substantially rectangular and substantially perpendicul...
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WO/1997/022158A2 |
A device for scanning in a scanning axis (110) in a scanning plane includes a periodic array of conductive plates (170) disposed along the scanning axis, each conductive plate being substantially rectangular and substantially perpendicul...
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WO/1997/010624A1 |
A self-tuning material which is used for a patch antenna, waveguide, etc., and efficiently radiates radio waves despite of its simple structure and small size. The material is manufactured by mixing metallic chips composed of two or more...
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WO/1997/007558A1 |
A frequency-selective surface (400) designed to transmit (allow to pass through) electromagnetic radiation (440) around one or more predetermined transmission frequencies. The frequency-selective surface comprises at least two layers (41...
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WO/1997/004497A1 |
The reflector consists of a ground plane, enclosed in a ground plane frame, and a phasing plane, enclosed in a phasing plane frame. Spacers maintain the planes in connected, spaced relationship. The phasing plane includes a plurality of ...
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WO/1997/002496A1 |
The invention concerns a monostatic FMCW radar sensor for a vehicle for detecting objects, wherein at least one antenna feed in conjunction with a dielectric lens is designed both to emit and receive a corresponding echo signal. At least...
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WO/1996/040505A1 |
An infrared radiation-interactive article (10) comprising an oxidizable metal body (18) of a radiation-interactive size and shape, with an oxidation-promoting salt (20) in contact with the metal body (18), arranged so that in exposure to...
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WO/1996/038025A1 |
A laminated composite material (10) having patterned conductors integral to its structure is described which comprises a plurality of cloth layers and a penetrating resin matrix material in which at least one of the cloth layers (4) has ...
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WO/1996/031918A1 |
The invention concerns a window-pane antenna array with one or more conductors (3) or conductor structures (3) mounted on or in the window pane (1) for a multiplicity of antennae for various radio services. Extending over the glass in th...
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WO/1996/030965A1 |
A dual action support cylinder placed between a support (2) and a load (1) for applying on said load a nominal force of about 400 to 3900 N for a low displacement of less than 1 cm, characterised in that it has a body (10) forming a vess...
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WO/1996/029621A1 |
A preferred metallodielectric photonic crystal structure includes a three-dimensionally periodic lattice structure of high-electrical-conductivity metallic elements arranged to produce a photonic band gap which defines a range of frequen...
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WO/1996/021164A1 |
A microwave RF landing system having an airborne transmitter/receiver unit which transmits a pulsed interrogation signal toward a ground based transponder unit which receives the pulsed signal through its non-rotating luneberg lens anten...
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WO/1996/012925A1 |
An integrated spacing and orientation control system is provided for carrying an array of objects and maintaining a predetermined orientation of the objects and a predetermined spacing between objects in a grid-like fashion. In a present...
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WO/1996/012928A1 |
The present invention pertains to the aerial deployment of generally planar structures (30). Typically, theses structures are explosive arrays (20). Such explosive arrays (20) are typically used in standoff minefield clearing and breachi...
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WO/1996/010848A1 |
The chiral polarisation transformer is a slab made of uniaxial chiral material (Figure 1) which transforms the polarisation of the transmitted electric field. This application can be used in microwave engineering, in high frequency techn...
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WO/1996/010849A1 |
A directional antenna comprising a rectangular loop antenna body (1) having a short side (2B) and a long side (2A) that is 2 to 3 times longer than the short side and equivalent to a 1/2 wavelength; and a pair of rectangular reflecting p...
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WO/1996/010207A1 |
Orbitable telescope comprising a membraneous mirror (45), a membrane (46) for controlling the mirror and having integrated electronics, an enveloppe (2) and a sheath (3) for protection purposes, which are foldable and are comprised of a ...
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WO/1996/001912A2 |
An article (130) comprising a non-conductive substrate (136), preferably of an environmentally degradable character, having a thickness of an oxidizable metal coating (138) thereon, and optionally an oxidation enhancingly effective amoun...
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WO/1995/034922A1 |
There is disclosed herein a system for reflecting electromagnetic radiation emanating from a doppler-based radar source (10) toward the source whereby at least a portion of the difference between the emanating (12) and reflected signal (...
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WO/1995/033287A1 |
An antenna (10) includes an antenna element (14) and a composite dielectric structure (13). The composite dielectric structure (13) at least partially envelops the antenna element (14). The dielectric structure (13) is formed to have a g...
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WO/1995/030917A1 |
A periodic dielectric structure and method of fabricating same, the structure having a three-dimensional photonic bandgap. The structure includes a plurality of layers, at least one layer having a stratum of a first material having a fir...
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WO/1995/030255A1 |
A process and article for a retroreflective polymeric coated flexible fabric material having a retroreflective layer and a polymeric compatibilizing layer welded to a polymeric coated outer surface of a flexible fabric material. The comp...
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WO/1995/030254A1 |
The proposed multiple beam lens antenna comprises a spherical centrally symmetrical lens secured by means of connecting units (3) to an elliptical frame (2) in such a way that the centre of the lens (1) lies outside the plane of the fram...
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WO/1995/029517A1 |
The proposed dielectric lens with variable refractive index consists of interconnected modules (1, 4, 7, 9, 12) made of homogeneous dielectric materials with differing permittivities ('epsilon') and configured in accordance with an estab...
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WO/1995/021473A1 |
The reflector consists of a ground plane (1), enclosed in a ground plane frame, and a phasing plane (3), enclosed in a phasing plane frame. Spacers (5) maintain the planes in connected, spaced relationship. The phasing plane (3) includes...
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WO/1995/018980A1 |
Compact microwave and millimeter wave radars operating at 77 GHz and having resolution of no less than 3.2 meters at a distance of 100 meters. The exemplary dimensions of the radars are 145 millimeters in diameter and 100 or 85 millimete...
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WO/1995/007558A1 |
The usable range of incidence angles for electromagnetic wave polarizers using arrays of polarizer elements (10) is increased by introduction of a dielectric medium (18) having a dielectric constant large enough to reduce the angle of wa...
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WO/1995/001661A1 |
A multiple-frequency feed assembly for an antenna system having two coaxial cavities, with a smaller, high-frequency cavity mounted coaxially within a larger, low-frequency cavity. A separate rotatable probe is mounted within each cavity...
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WO/1995/000982A1 |
A radiation sensor (10) for the microwave and millimetre-wave regions incorporates a lens (12) having two parallel focal planes (26a, 36), these being defined by a polarization-selective reflecting PIN diode array (18) within the lens (1...
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WO/1995/000981A1 |
A device for suspending objects inside a balloon by means of fastenings to the wall of the balloon, wherein the fastenings are positioned at one or more points of suspension on the balloon wall and are in the form of hollow protrusions o...
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WO/1995/000048A1 |
A self-supporting umbrella canopy (102) has a high strength-to-weight ratio and the ability to compactly fold flat. The umbrella canopy (102) uses a series of collapsible, closed cross section cells (104) to provide its support and to pr...
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WO/1994/028595A1 |
Antenna arrangements for use with portable communications devices are described. In one embodiment, an antenna (50) has four equally spaced monopole elements (52-58) mounted in a regular array on the outer surface of a solid cylinder str...
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WO/1994/026495A1 |
A metallic substrate (60) such as copper foil has an etch barrier (64) such as polyimide, Saran wrap, or other plastic applied. This barrier is thereafter selectively etched or ablated with a laser, for example by passing the light throu...
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WO/1994/024724A1 |
A radar absorbing material comprising multiple layers integrated to form a thin, flexible, and lightweight structure. The material includes a substrate (12) having disposed thereon absorber elements that are resistively loaded to enable ...
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WO/1994/014211A1 |
A reflector consisting of an upright pseudo-dihedral with its edge (C) shaped like a partial helix, for use in producing a calibrator or beacon.
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WO/1994/013029A1 |
Efficient transmission and reception of electromagnetic radiation are achieved by an antenna on a substrate. An antenna (100) is fabricated on the top surface (102) of a substrate (104) which includes a periodic dielectric sturcture (106...
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WO/1994/011920A1 |
In a waveguide lens (1) for primarily circularly or linearly polarized electromagnetic radiation there is one or several rotationally symmetrical rings (5), arranged concentrically about a lens axis (3), for focusing of the incoming part...
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WO/1994/010721A1 |
Disclosed is a method and apparatus for electrostatically shaping a membrane suitable for use in antennas or the like, comprising an electrically conductive thin membrane (10) where the periphery of said membrane is free to move in at le...
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WO/1994/001900A1 |
A zone plate focusing radiation comprises a plurality of surface portions (20a, 20b, 20c, 20d, 30) corresponding to zones of the zone plate. The surface portions are positioned in a plurality P of parallel planes such that each surface p...
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WO/1994/000891A1 |
A reconfigurable frequency selective surface comprises at least two arrays (1, 2) of elements (3), the arrays (1, 2) being arranged in close proximity with one another so that elements (3) of a first array (9) are closely coupled with el...
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WO/1994/000892A1 |
A waveguide (4) includes two frequency selective surfaces (5) mounted within the waveguide parallel to its side walls (6). The frequency selective surfaces (5) influence the frequency response of the waveguide (4).
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WO/1994/000734A1 |
Apparatus and method of setting the upstand height of the studs (5) of an array (1) of studs used to form antenna panels is disclosed. The apparatus includes a transducer beam (10) having a row of spaced apart distance transducers (12). ...
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WO/1993/026059A1 |
A non-mechanical beam deflector (Figs. 21A-23B) forms and scans a beam of millimeter wave (MMW) radiation, from a MMW source (268), at a rapid rate. The beam deflector includes a semiconductor body (160, 280) in which a spatially varying...
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WO/1993/024307A1 |
A method for making a material with an artificial dielectric constant is carried out by choosing the desired dielectric constant for a particular electromagnetic field, selecting a substantially non-electrically conductive sheet material...
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WO/1993/023893A1 |
An electromagnetic energy absorbing structure (20) provides a base structure (22) having an electrically conductive ground plane (38) positioned thereover. At least one dielectric (36) and one impedance layer (32) are positioned over the...
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WO/1993/022806A1 |
Folded lens transmit/receive antennae, systems for receiving and/or transmitting a signal, methods for receiving and/or transmitting electromagnetic energy, a scanning folded lens antenna, systems for scanning reception and/or transmissi...
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WO/1993/021367A1 |
Process for incorporating a metal framework inside a plastic material in order to make moulded articles. The process involves making a thin knitted article (1), preferably with sunk stitches, which is flexible in order to provide deforma...
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WO/1993/010572A1 |
This invention relates to the fabrication of dielectric material suitable for dielectric antennas such as Luneburg-type lens antennas and to an according antenna system. It is an object of the present invention to produce dielectric mate...
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