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7612718 |
Tunable frequency selective surface
An apparatus and methods for operating a frequency selective surface are disclosed. The apparatus can be tuned to an on/off state or transmit/reflect electromagnetic energy in any frequency. The...
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7605769 |
Multi-ban U-slot antenna
In a multi-band U-slot planar antenna, a limited ground plane is provided. A connector includes a ground terminal connected to the ground plane and a feeding terminal for feeding a signal. A planar...
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7605768 |
Multi-beam antenna
A plurality of antenna end-fire antenna feed elements at a corresponding plurality of locations and oriented in a corresponding plurality of directions on a third dielectric substrate cooperate...
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7595757 |
Electrical connection elements provided in the AMC structure of an antenna arrangement
A portable communication device comprises an antenna arrangement having a radiating antenna element and a grounding layer comprising an AMC material structure facing the radiating antenna element....
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7586444 |
High-frequency electromagnetic bandgap device and method for making same
A high-frequency Electromagnetic Bandgap (EBG) device, and a method for making the device are provided. The device includes a first substrate including multiple conducting vias forming a periodic...
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7576696 |
Multi-band antenna
Antenna assemblies and corresponding modes of operation are provided where the first antenna assembly of the system is tuned to a first frequency band ν1 and the second antenna assembly of the...
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7570221 |
Reduced beamwidth antenna
Systems and methods for reducing the beamwidth of an antenna system are provided. An evanescent field generator generates an evanescent field representing a far field radio frequency (RF) signal...
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7564419 |
Wideband composite polarizer and antenna system
A composite polarizer including a first polarizer having a plurality of parallel metal vanes and a second polarizer having a plurality of parallel layers of dielectric material is provided. The...
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7561109 |
Reconfigurable antenna using addressable pixel pistons
An antenna made up of addressable conductive segments, or pixel elements, affixed to the top of each piston in a piston array is presented. The pixel elements can be activated in less than a...
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7557769 |
Electromagnetic interference protection for radomes
A radome, and corresponding method of making, comprising an electro-optic transparent substrate, a semiconductor coating on the substrate, and a frequency selective surface embedded in the coating.
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7548217 |
Partially reflective surface antenna
A partially reflect surface antenna includes a substrate, a reflective sheet and a plurality of supporting units. The substrate has an upper surface formed thereon a signal I/O for receiving and...
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7528797 |
Electrical connector with frequency-tuned groundplane
An electrical connector with a frequency-tuned groundplane is disclosed. The connector includes a signal medium to communicate an electrical signal and a frequency-tuned groundplane medium to...
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7528778 |
Structure for coupling power
Structures and a method of manufacturing an oscillator are disclosed. The structure contains a substrate with a first and a second major surfaces, a first plurality of conductors arranged in a...
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7525506 |
Antenna apparatus and antenna radome and design method thereof
An antenna radome is associated with an antenna and comprises a plurality of radome elements arranged in an array. Each radome element comprises a dielectric substrate on which an upper surface is...
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7525501 |
Bicone pattern shaping device
A broadband omni-directional bicone antenna. The antenna can comprise conductive surfaces of conical voids provided within a solid dielectric structure. The outside surface of the solid structure...
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7522124 |
Indefinite materials
A compensating multi layer material includes two compensating layers adjacent to one another. A multi-layer embodiment of the invention produces subwavelength near-field focusing, but mitigates the...
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7522105 |
Antenna using a photonic bandgap structure
A microstrip patch antenna utilizes a microstrip patch antenna substrate formed of photonic bandgap material. One or more periodic patterns may be used therewith to produce multiple bandgaps into...
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7518566 |
Waveguide structure for creating a phase gradient between input signals of a system of antenna elements
A planar waveguide structure for creating a phase gradient between the input signals of a system of antenna elements requires relatively little space and also ensures relatively low-loss beam...
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7518465 |
Tunable high impedance surface device
A tunable high impedance surface device ( 100 ) includes a conductive ground plane ( 105 ) and a plurality of conductive elements ( 110 - 114 ) electrically connected to the conductive ground plane...
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7508353 |
Exterior component disposed on front surface of radar device of vehicle
An exterior vehicle component includes a proximity member disposed along an outer perimeter of an electromagnetic wave transmission member provided at a center of the component which is disposed in...
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7492329 |
Composite material with chirped resonant cells
A composite material comprising a dielectric material and a plurality of non-overlapping local resonant cell groups disposed across the dielectric material is described. Each local resonant cell...
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7482994 |
Three-dimensional H-fractal bandgap materials and antennas
A three dimensional (3D) fractal structure with H as the mother element is hereby disclosed. Such a 3D structure can act as selective total microwave reflectors or selective microwave filters in...
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7482990 |
Radar device for a mobile body
A radar device for a mobile body, such as a vehicle, having a high degree of installation freedom. The radar device comprises a sensor body transmitting and receiving electromagnetic waves, and...
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7482273 |
Transmissive dynamic plasma steering method for radiant electromagnetic energy
Radiant electromagnetic energy beam steering method achieved following antenna conversion from electrical current and voltage characterized signals to radiant wave characterized signals by way of...
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7474273 |
Gas plasma antenna
A gas plasma antenna with a rigid, flexible, or semi-flexible substrate and an improved method of generating a uniform electron density. The antenna comprises a plasma display panel (PDP)...
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7471247 |
Antenna array and unit cell using an artificial magnetic layer
An antenna array includes a plurality of antenna unit cells, a ground plane, and at least one artificial magnetic layer AML unit cell. At least one AML unit cell is disposed between at least two...
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7463214 |
Method and apparatus for steering radio frequency beams utilizing photonic crystal structures
An RF beam steering device according to present invention embodiments employs a prism assembly to steer an RF beam. The prism assembly includes a plurality of dielectric prisms each with an...
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7463213 |
Antenna unit having a single antenna element and a periodic structure upper plate
An antenna unit consists of an EBG reflector, a single curl antenna supported at a central portion of the EBG reflector, and a periodic structure upper plate disposed apart from a principal surface...
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7460084 |
Radio frequency holographic transformer
A three-dimensional holographic array of radio-frequency (RF) diffraction gratings, each of which has lengths of conductive and insulating fluid that are selected and adjusted to provide a desired...
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7460060 |
Electromagnetic wave transmitting/receiving module and imaging sensor having electromagnetic wave transmitting/receiving module
An electric wave transmitting/receiving module includes: a waveguide including a conductive member and an opening facing a transmitting side and/or a receiving side; a dielectric substrate disposed...
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7456803 |
Large aperture rectenna based on planar lens structures
A rectenna structure comprising a flexible, dielectric sheet of material; a plurality of metallic lenslets disposed on the sheet of material; and a plurality of diodes disposed on the sheet of...
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7446712 |
Composite right/left-handed transmission line based compact resonant antenna for RF module integration
An apparatus based on composite right-handed or left-handed (CRLH) principles to provide a transmission line or antenna structure having a plurality of cells to which one or more feed ports are...
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7436373 |
Portable receiver for radar detection
Various embodiments are described relating to a portable antenna-equipped device for multi-band radar detection. The detection device includes a plurality of antennas on a flexible substrate, a...
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7429962 |
Millimeter-wave transreflector and system for generating a collimated coherent wavefront
A planar multi-layer transreflector for generating collimated coherent energy comprises one or more of insulating layers between two or more metallic layers. The transreflector substantially...
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7429961 |
Method for fabricating antenna structures having adjustable radiation characteristics
The radiation properties and wave guiding properties of frequency selective surfaces are used in conjunction with closely spaced antenna elements to fabricate antenna structures having adjustable...
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7423608 |
High impedance electromagnetic surface and method
A high impedance surface ( 300 ) has a printed circuit board ( 302 ) with a first surface ( 314 ) and a second surface ( 316 ), and a continuous electrically conductive plate ( 319 ) disposed on...
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7420524 |
Pixelized frequency selective surfaces for reconfigurable artificial magnetically conducting ground planes
A reconfigurable frequency selective surface (FSS) includes a plurality of conducting patches supported on the surface of a dielectric layer, with selectable electrical interconnections between the...
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7414593 |
Thermoformed frequency selective surface
A three-dimensional FSS fabrication system is described. FSS elements are pre-mapped in two-dimensional form and constructed on a flat FSS panel that is then formed into a desired three-dimensional...
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7411565 |
Artificial magnetic conductor surfaces loaded with ferrite-based artificial magnetic materials
A magnetically-loaded artificial magnetic conductor surface provides enhanced bandwidth. The structure includes in one embodiment a thumbtack structure with a spacer layer that is loaded with a...
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7411564 |
Frequency multiband antenna with photonic bandgap material
A frequency multiband antenna includes a photonic bandgap material having at least one band gap, one single periodicity defect of the bandgap material so as to produce several narrow bandwidths...
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7405698 |
Ceramic antenna module and methods of manufacture thereof
Circuit modules and methods of construction thereof that contain composite meta-material dielectric bodies that have high effective values of real permittivity but which minimize reflective losses,...
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7400304 |
Antenna with partially spherical dielectric lenses
An antenna is provided comprising a first group of part-spherical dielectric lenses supported on a first portion of a conducting ground place arranged to reflect signals emerging from the lens,...
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7388557 |
Antenna which is made from a photonic band gap (PBG) material and which comprises a lateral wall surrounding an axis
A antenna made from a photonic band-gap (PBG) material, includes: a lateral wall ( 4 ) which is made from a PBG material and which completely surrounds a central axis ( 6 ), the wall being disposed...
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7375696 |
Electromagnetic wave transmitting/receiving device
A direction-change element for changing the direction of travel of an incident electromagnetic wave and electromagnetic wave transmitting/receiving elements are disposed on a substrate. The...
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7365701 |
System and method for generating a genetically engineered configuration for at least one antenna and/or frequency selective surface
An optimal configuration for at least one antenna and/or at least one frequency selective surface is generated. A configuration of elements is generated by selecting a simple configuration of at...
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7365684 |
Antenna having a filter and a signal feed-in point
An antenna structure used in an electronic device includes a signal transmission line and an antenna unit. The signal transmission line is electrically coupled to the electronic device. The antenna...
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7355554 |
Method of producing a photonic bandgap structure on a microwave device and slot type antennas employing such a structure
The invention relates to a method of producing a photonic bandgap structure on a slot-type microwave device which is produced on a metallized substrate. According to the invention,...
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7345652 |
Antenna system and RF signal interference abatement method
Disclosed is an antenna system including a Luneberg Lens having a spherically shaped outer surface and a spherically shaped focal surface spaced from its outer surface with a plurality of patch...
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7339539 |
Photonic crystal exhibiting negative refraction without requiring a negative effective index
A periodic electromagnetic medium is disclosed that includes a surface that provides an interface with an ambient medium and a periodic structure that provides negative refraction within the medium...
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7339521 |
Analytical instruments using a pseudorandom array of sources, such as a micro-machined mass spectrometer or monochromator
Novel methods and structures are disclosed herein which employ pseudorandom sequences to spatially arrange multiple sources in a pseudorandom source array. The pseudorandom source array can replace...
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