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8115697 |
System and method for highly directional electronic identification and communication and combat identification system employing the same
An antenna for directional electronic communication and a directional communication system are provided. In one embodiment, the antenna includes: (1) a conductive shield having an opening at an end...
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8098187 |
Wide field of view millimeter wave imager
An imager comprising a sphere of dielectric material and a geodesically configured substrate disposed adjacent said sphere. The geodesically configured substrate comprises a plurality of...
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7796080 |
Wide field of view millimeter wave imager
An imager comprising a sphere of dielectric material and a geodesically configured substrate disposed adjacent said sphere. The geodesically configured substrate comprises a plurality of...
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7671820 |
Luneberg dielectric lens and method of producing same
A hemispherical Luneberg dielectric lens including a hemispherical center layer having a hemispherical outer surface, and a plurality of hemispherical dome-shaped layers each having concentric...
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7667665 |
Dual frequency aperture antenna
A dual frequency radar antenna for connection to a first radar transmitter/receiver set which operates in a relatively lower frequency band and to a second radar transmitter/receiver set which...
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7667667 |
Radio wave lens antenna apparatus
In a radio wave lens antenna, a lens cover for covering the surface of the lens is stably fixed to the reflector. The antenna has a semispherical Luneberg lens, a semispherical shell-shaped lens...
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7580004 |
System and method for position or range estimation, tracking and selective interrogation and communication
An antenna mountable on a weapons platform, a communication system and methods of estimating position or range and conducting directional communication. In one embodiment, the antenna includes: (1)...
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7499001 |
Dielectric antenna device
The dielectric antenna device of the present invention is a dielectric antenna device having at least one feed element that is buried in a dielectric. The interval between the end portion of the...
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7420525 |
Multi-beam antenna with shared dielectric lens
An integrated multi-beam antenna with a shared dielectric lens is disclosed. The antenna is formed by positioning the feed apertures of a plurality of waveguide feeds at positions located on the...
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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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7382331 |
Antenna device
An antenna device includes an antenna part and a dielectric formed on the antenna part. The dielectric is formed to be thicker in a direction of directivity that the antenna part is to be made to...
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7348934 |
Lens antenna system
A compact lens antenna assembly A which is a Luneberg lens antenna comprising a hemispherical lens and a reflecting plate so as to converge incoming radio waves on a feed, and which can receive...
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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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7333070 |
Radio wave lens antenna device
An antenna device using an approximate Luneberg lens, wherein high gain and low side-lobe are made compatible. A lens antenna device comprising, combine with each other, a radio wave lens (1)...
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7301504 |
Mechanical scanning feed assembly for a spherical lens antenna
The invention includes a mechanical scanning feed and a spherical lens antenna system. The mechanical feed includes a waveguide, which has a movable wall assembly that contains a guide slot. The...
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7253789 |
Dielectric resonator antenna
There is disclosed a dielectric resonator antenna adapted to resonate in an EH11δ resonance mode, and also a method for the manufacture thereof. The desired resonance mode is achieved by careful ...
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7221328 |
Radiowave lens antenna device
Lens antenna equipment including a hemispherical Luneberg lens made of dielectric, a reflector which has a size larger than the lens diameter and which is to be provided on a face equivalent to a...
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7205950 |
Radio wave lens antenna
A multi-beam lens antenna for individual communication with communication satellites spaced at small elongations. The multi-beam antenna comprises primary feeds 3 each of which is composed of a...
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7196655 |
System and method for highly directional electronic identification and communication and combat identification system employing the same
An antenna for directional electronic communication, a directional communication system, a method of conducting directional communication, a combat identification system and a method of identifying...
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7179844 |
Dielectric resin foam and lens for radio waves using the same
It is an object of the present invention to provide a dielectric resin foam which has high and uniform dielectric properties and is preferable for use as various dielectric materials. A dielectric...
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7119758 |
High frequency, multiple beam antenna system
The high frequency, multiple beam antenna system comprises a focusing device having a profile of revolution created by the cross section of a dielectric lens rotating about an axis located in its...
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7088309 |
Lens antenna
A lens antenna including a lens body and/or a matching layer. In the lens antenna, lens body may be formed by a material containing thermoplastic elastomers. When a matching layer is formed on the...
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7061448 |
Radio wave lens antenna apparatus
A small, lightweight radio wave lens antenna device is proposed in which freedom of selection of the installation place is high, which can be compactly installed e.g. on a wall surface, and in...
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6784854 |
Dielectric detection through conductive metal
Apparatus and methodology utilizing nearfield microwave technology to detect contraband/forbidden substances concealed within metallic containers. Apparatus and methodologic microwave operating...
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6661392 |
Resonant antennas
An apparatus includes an object and one or more sensors located adjacent to or in the object. The object is formed of a material whose dielectric constant or magnetic permeability has a negative...
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6549340 |
Focusing device comprising a Luneberg lens including a homogeneous volume of dielectric and method material for making such a lens
The invention relates to a focusing device comprising a Luneberg lens comprising a homogeneous volume of dielectric. It is characterized in that the dielectric comprises a granular agglomerate...
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6473050 |
Motor-drive device for sensors in a receiver and/or transmitter with spherical electromagnetic lens and receiver and/or transmitter comprising such a device
A motor-drive device for sensors around a spherical electromagnetic lens, for example a Luneberg type lens using in a system of transmission and/or reception, comprises, for each module, at least...
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6462717 |
Enclosure for microwave radio transceiver with integral refractive antenna
An all-weather housing for outdoor microwave radio nodes arranged in a network, each node capable of directing or receiving a beam of microwave energy in a selected direction, the housing including...
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6433936 |
Lens of gradient dielectric constant and methods of production
Disclosed is a lens of gradient dielectric constant and methods for the production of same. The lens includes an inner core comprising a cured or fused substantially homogenous blend of glass...
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6407708 |
Microwave generator/radiator using photoconductive switching and dielectric lens
A device for generating and radiating pulses of radio frequency/microwave energy in response to pulses of laser light in which a metal layer is ohmically bonded to each side of a substrate of...
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6380904 |
Antenna apparatus
A foaming material is charged between a spherical lens and a radome, to form a foaming material layer, thereby to connect the both and support the spherical lens from the side of the radome, in...
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6356247 |
Antenna system for tracking moving satellites
The invention relates to a system of antennas for tracking nonsynchronous satellites (21, 22) along predefined trajectories. It is characterized in that the said system includes at least first (11)...
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6333718 |
Continuous multi-satellite tracking
The pointing of at least two sensors (61, 62) is ensured through a Luneberg lens (50). A first frame (20) pivoting on a support (10), supports in pivoting manner a second frame (30), which can in...
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6329956 |
Satellite communication antenna apparatus
A satellite communication antenna apparatus for performing communication with a communication satellite, comprises a spherical radio wave lens, an arcuate guide unit arranged along an outer surface...
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6304225 |
Lens system for antenna system
An antenna system (30) includes a lens (40, 50) and a plurality of non-uniform feed elements (42, 52). The non-uniform feed elements (42, 52) are coupled to the lens system and operable to shape...
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6266029 |
Luneberg lens antenna with multiple gimbaled RF feeds
A Luneberg lens has a plurality of feeds arranged to send and receive signals to and from a plurality of satellites. The lens is spherical and is fixedly supported on a support mount. Also...
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6262688 |
Antenna system and method for controlling antenna system
An antenna system of the invention includes a plurality of antenna devices respectively configured to send or receive a plurality of radio beams, a plurality of electric feeding units respectively...
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6169525 |
High-performance sectored antenna system using low profile broadband feed devices
A sectored antenna system has one or more dielectric lenses, each having a surface and two or more low profile antenna feed devices. At least one of the feed devices radiate signals into said lens...
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6160519 |
Two-dimensionally steered antenna system
A two-dimensionally steered antenna system (40) includes a planar lensing system (64, 94) operable to focus signals received from a plurality of ground-based cells (20). A first steering system...
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6046701 |
Apparatus for high-performance sectored antenna system
A sectored antenna system has one or more dielectric lenses, each having a surface and two or more antenna feed devices tilted non-parallel to the lens surface and preferably angled in a V pattern....
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6025803 |
Low profile antenna assembly for use in cellular communications
The low profile antenna assembly comprises a generally rectangular frame member housing a planar antenna. A radar absorbing material is attached to the front side of the housing with a radome...
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5966103 |
Electromagnetic lens of the printed circuit type with a suspended strip line
An electromagnetic lens comprises two conductive sides between which there is arranged a cavity provided in its lateral portion with electromagnetic input/output coupling transitions to authorize a...
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5821908 |
Spherical lens antenna having an electronically steerable beam
The invention relates to an antenna system which is capable of producing multiple, high-gain, independently steerable antenna beams from a single antenna aperture. The system accomplishes this, in...
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5781163 |
Low profile hemispherical lens antenna array on a ground plane
An array of hemispherical dielectric lenses antenna on a ground plane for focusing radiation from an array of point sources, each point source being located adjacent to its respective hemispherical...
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5764199 |
Low profile semi-cylindrical lens antenna on a ground plane
A semi-cylindrical dielectric lens antenna on a ground plane for focusing radiation from a line source adjacent to the semi-cylinder. Grooves in the surface of the ground plane modify the...
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5748151 |
Low radar cross section (RCS) high gain lens antenna
A low radar cross section lens antenna having high gain is disclosed. A spherical lens having a dielectric radial gradient focuses planar RF energy coupled thereto onto a focal point on the surface...
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5677796 |
Luneberg lens and method of constructing same
An improved spherical gradient lens and a method of fabricating same. A uniform sphere of a material such as high density irradiated polystyrene or a methylpentene copolymer in the polyolefin...
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5625368 |
Radiowave antenna system
An antenna system for receiving radiowaves includes a Lundeburg-type lens which reflects radiowaves to a focal point of the lens. A helical primary feed is located in the proximity of the focal...
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5444455 |
Helical antenna feed element with switches to select end fire and backfire modes and circular polarization direction
An antenna system capable of receiving electromagnetic radiation having either right or left helical polarization, and either vertical or horizontal linear polarization includes an energy...
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5384458 |
Photonic electromagnetic field sensor for use in a missile
An electromagnetic field sensor for use in a target seeking missile which asures the amplitude, phase, frequency and polarization of an incoming electromagnetic field as well as the angle of...
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