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WO/1988/009066A1 |
A microwave lens (20) may be used to steer the beam of an array antenna (5) having radiating elements connected by feed lines (9) to array ports (3) of a microwave lens. In order to provide a continuously variable range of steering angle...
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WO/1988/004479A1 |
A process (2) for camouflaging the inlets (1) of power units of aircraft and the like against detection by radar is disclosed. To reduce the global radar cross-section of the aircraft as a whole, the openings of the power unit inlets (1)...
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WO/1988/004480A1 |
A composite reflector structure (28) for a spacecraft antenna system (20, 50) is formed of a honeycomb material, transparent to electromagnetic radiation, and having inner and outer arcuate surfaces (30, 32) substantially uniformly space...
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WO/1988/001443A1 |
A reception system for satellite signals includes parabolic petals (12), each having a reflective receiving surface, each of the petals constituting one radial segment of a surface of a paraboloid. There is also provided a servo-motor (2...
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WO/1988/001442A1 |
A frequency selective screen (18) is employed as a diplexer to separate each of one or more radio frequency signals into first and second bands of frequencies by allowing the first band of frequencies to pass therethrough and reflecting ...
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WO/1987/002193A1 |
The optical device includes a pair of interfaces (14, 16) spaced one generally behind the other. The rear interface (16) is arranged to deflect incident parallel radiation of radio frequency, while the other (14) is positioned to interse...
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WO/1986/007231A1 |
There is disclosed a woven, non-woven or knitted textile material based on monofilaments of natural or synthetic polymers, graphite fibres or metal fibres. The surface presents asperities of which the sizes are comprised between one eigh...
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WO/1986/006881A1 |
A dielectric antenna lens (10) for planar wavefront/focal point conversion is configured of a series of concentric rings, each of which is contoured from a rear face (7) to inclined termination edges (15) that are delimited by the functi...
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WO/1986/001339A1 |
A microwave polariser in the form of a wedge (2, 3) at the termination of a rod (1) of dielectric material. Preferably the wedge tapers exponentially in order to provide a good impedance match. Circularly polarised radiation propagating ...
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WO/1985/005113A1 |
Fiber-reinforced syntactic foam composites having a low specific gravity and a low coefficient of thermal expansion suitable for forming lightweight structures for spacecraft applications are prepared from a mixture of a heat curable the...
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WO/1985/004051A1 |
An antenna for circularly polarised radiation has a linear array of radiating elements with common linear polarisation. A single anisotropic layer is mounted around the array so as to be substantially parallel to the wave fronts of radia...
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WO/1984/003005A1 |
Parabolic antenna made from several layers of vacuumformed plastic. A first front vacuumshaped shell (1) consists in its turn of a rear supporting layer (2), a metal layer (3) for reflection of radiation and a front protective layer (4),...
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WO/1984/001326A1 |
A bead (30) for connecting cords (22) (24) which is lightweigth, relatively inexpensive and reduces cord fraying. The bead (30) includes holes (34) therethrough through which the cords (22) (24) extend an adhesive in the holes (34) for b...
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WO/1984/001242A1 |
A frequency selective surface or dichroic structure has an array of elements (1) each of which comprises at least two substantially concentric symmetrical closed figures (2, 3). For example, the element array may be a regular array of id...
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WO/1983/001711A1 |
Hybrid mode feeds which are capable of handling very wide bandwidths. In the present feed arrangements, a dominant TE11 mode is converted to the HE11 hybrid mode which is then launched. The TE11 to HE11 mode conversion is achieved by ins...
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WO/1982/002120A1 |
A reflector antenna, in which the face of a reflector (5) is divided into a plurality of partial reflectors and the faces of the partial reflectors are given different heights, by attaching metal tapes (6) of different thicknesses onto t...
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WO/1982/001279A1 |
In an unfoldable boat roof, preferably forming an integral part of an inflatable life raft, a passive locating device is comprised by a foldable localization reflector which is set in place upon unfolding the roof body. To this effect, h...
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WO/1982/000545A1 |
A portable, lightweight, folding parabolic reflector antenna for reception of microwave signals includes an axial wave guide tube (14) which constitutes the main structural supporting member of the antenna, a ten to fifteen foot diameter...
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WO/1979/001159A1 |
A relatively large reflector (10) or curved mould is constructed from rib members (11, 12) interleaved with each other so as to form a multiple cell or egg-box like structure. The rib members are pre-shaped on one edge (14) to conform ap...
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JP7499179B2 |
Systems and methods are described herein for an optical beam-steering device that includes an optical transmitter and/or receiver to transmit and/or receive optical radiation from an optically reflective surface. An array of adjustable p...
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JP7499368B2 |
A radome (10) for protecting a radar device is disposed in the transmission path of signals to/from the radar device. The radome (10) includes a shell (140); a first circuit board (100) disposed at a side of the shell (140) facing a rada...
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JP7497736B2 |
To provide a millimeter wave reflective building decorative material with excellent appearance and reflective characteristics.A millimeter wave reflective building decorative material 1 includes a planar dielectric 20, a supercell 10 pro...
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JP7497738B2 |
To provide a millimeter wave reflector that suitably functions even when installed with a water-based adhesive.A millimeter wave reflector 1 includes a dielectric 20 in the form of a surface, a supercell 10 provided on a first surface 20...
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JP2024078133A |
A radio wave reflecting device is provided that has a degree of freedom in the range in which radio waves can be reflected. [Solution] In one embodiment, the radio wave reflection device includes a plurality of patch electrodes, a common...
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JP7495520B2 |
The disclosure relates to suppressing surface waves in a communication device for a wireless communication system. The communication device includes a dielectric layer extending along a plane between a chassis and a glass layer, an anten...
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JP7494401B2 |
The disclosure relates to structures of, and methods for forming electromagnetic band gap (EBG) element. Specifically, the disclosure is directed to methods for additively manufacturing electronic mushroom-type EBG elements having a peri...
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JP7492072B1 |
The present invention provides an electromagnetic wave reflector that is highly resistant to damage such as cracks, chips, falling off, peeling, and other dimensional errors in an element pattern. [Solution] The electromagnetic wave refl...
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JP2024072111A |
A radar antenna is provided that can obtain the required characteristics and performance while keeping manufacturing costs low. [Solution] The device comprises a plurality of radiating stubs (21) formed on the front side of a plate-like,...
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JP2024520939A |
According to the present invention, there is provided a polarization converter comprising a first element array layer extending in a plane comprising a first array of spaced apart conductive dipole elements, a second element array layer ...
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JP2024520695A |
A multi-layer frequency selective surface is disclosed that exhibits a frequency response having a passband and one or more stopbands. [Selection diagram] Figure 5
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JP2024520681A |
A method, an apparatus, and a computer-readable storage medium for controlling a network node are provided, the method for controlling a network node comprising the steps of: receiving (S1) signaling transmitted from a base station, the ...
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JP2024071369A |
The present invention provides a radio wave reflection system and a method for arranging radio wave reflectors that maintain a sufficient radio wave reflection strength for practical use when reflecting radio waves using a plurality of r...
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JP7489462B2 |
Computer assisted method for manufacturing a foldable paraboloid antenna, that comprises the following steps:- election of a two-dimensional radial Origami pattern with triangular cells and election of a paraboloid surface,- the two-dime...
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JP2024070621A |
A metamaterial capable of independently controlling magnetic permeability and permittivity is provided. A metamaterial 200 includes a plurality of resonator structures 100 arranged in a spatially distributed manner. The resonator structu...
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JP2024070280A |
The present invention provides a reflective structure having a frequency selective reflector that reflects electromagnetic waves in a specific frequency band in a direction different from the regular reflection direction, which has good ...
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JP2024068778A |
An object of the present invention is to provide a radio wave reflecting device that has a large phase change amount of radio waves and high reflection strength. [Solution] The radio wave reflecting device has a first patch electrode, a ...
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JP2024069354A |
The present invention provides a frequency selective reflector that controls an area onto which a reflected beam that reflects electromagnetic waves of a specific frequency band in a direction different from the direction of specular ref...
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JP7486735B2 |
To alleviate degradation of an antenna radiation pattern caused by mutual coupling between adjacent radiation elements.A multi-beam antenna includes: a disc-shaped dielectric 1; a plurality of radiation elements 2 arranged along a circul...
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JP2024066474A |
The present invention provides a radio wave transmission system and a radio wave transmission method that can efficiently reflect radio waves to unspecified receiving terminals. [Solution] A radio wave transmission system includes a refl...
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JP2024064882A |
The present invention provides a reflector device that can easily add an RIS function to a place where a digital signage or large display can be installed, for example, by sharing a video display and an RIS. [Solution] A reflection direc...
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JP2024064837A |
An object of the present invention is to realize a device for adjusting the intensity distribution and phase distribution of electromagnetic waves guided through a waveguide, which can be manufactured in a short time and at low cost. [So...
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JP2024064439A |
An object of the present invention is to provide a radio wave scattering device in which a layer having an FSS (Frequency Selective Surfaces) function in a metasurface reflector and a dielectric layer can be brought into close contact wi...
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JP2024063404A |
An object of the present invention is to select specifications that satisfy target values without repeatedly making prototypes, taking into account variations caused by printing processing. A target value is set, and temporary mesh condi...
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JP7481045B1 |
The present invention provides a communication system that can cope with changes in dead zones and multiple blind zones using a radio wave scattering device using a metasurface. The present invention includes an access point 20 that tran...
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JP2024519005A |
The present disclosure relates to chips that interact with electromagnetic radiation and methods for manufacturing devices that interact with electromagnetic radiation. A method for fabricating a device includes placing an unpatterned gr...
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JP7479345B2 |
Exemplary embodiments are described herein for compactable antennas and methods of making such an antenna. Exemplary compactable antennas include a support structure and a reflector surface. The support structure may directly or indirect...
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JP2024059883A |
An object of the present invention is to provide a reflection structure including a frequency selective reflection plate that can suppress attenuation of electromagnetic waves by a protection member without imposing restrictions on desig...
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JP2024058174A |
The present invention provides a radio wave transmission method and a radio wave transmission system in which the reflection angle of a reflection plate and the amount of phase change of each reflection element can be easily set in order...
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JP2024057008A |
A method, apparatus, device, and storage medium for adjusting and controlling an electromagnetic unit that reduces the dimension and complexity of adjusting control is provided. [Solution] An adjustment control method for an electromagne...
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JP2024517921A |
An antenna apparatus for an automotive radar application comprises an antenna assembly comprising a front surface disposed with at least one antenna aperture configured to receive an incident signal in the form of primary radiation impin...
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