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6621464 |
Dual-band dipole antenna
A dual-band dipole antenna, which is adapted to be disposed on a dielectric substrate, comprises two substantially rectangular radiating metallic sheets and a coaxial transmission line. The...
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6608599 |
Printed conductive mesh dipole antenna and method
A printed conductive mesh dipole antenna, and a method of use of the antenna. The printed dipole antenna includes a dielectric substrate 12 and a conductive mesh 14 formed of a plurality of...
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6603430 |
Handheld wireless communication devices with antenna having parasitic element
A simple internal or partly internal antenna system for optimizing the radiation pattern from hand held wireless communications devices HHWCD such as hand-held data devices and cellular telephones...
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6600454 |
Antenna radiator
Antenna radiator, consisting of two plate-like or film-like parts ( 1, 2 ) connected by their foot ends ( 11 ) to each other and to the supply connection of the antenna. To reduce especially...
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6593895 |
Printed dipole antenna with dual spirals
The present invention relates to an antenna ( 1 ), comprising a dielectric substrate ( 2 ) comprising a front ( 3 ) and a back ( 4 ) dielectric face, at least one dipole element comprising a first...
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6590539 |
Antenna device in radio communication terminal
Disclosed is a radio communication terminal having an antenna device, which is capable of feeding power to an internal antenna using a simple configuration while achieving a reduction in SAR, by...
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6567055 |
Method and system for generating a balanced feed for RF circuit
A system and method for generating a balanced feed from an unbalanced feed, which uses a pair of vertically aligned microstrip traces on opposing sides of a printed circuit board to act as a balun...
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6567056 |
High isolation low loss printed balun feed for a cross dipole structure
According to one embodiment, a system is disclosed. The system includes a first dipole antenna, a second dipole antenna located orthogonal to the first dipole antenna, and a cross balance/unbalance...
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6563464 |
Integrated on-chip half-wave dipole antenna structure
A semiconductor device is presented which is composed of two adjacent semiconductor chips. Each semiconductor chip has an integrated half-wave dipole antenna structure located thereon. The...
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6559809 |
Planar antenna for wireless communications
Embodiments of a planar antenna suitable for use with a portable device for wireless communications are described. One such embodiment includes a microstrip line coupled to a radiating poise on one...
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6559810 |
Planar ultra wide band antenna with integrated electronics
An planar ultra wide bandwidth (UWB) antenna that provides integration of electronics is disclosed. The antenna has a first balance element that is connected to a terminal at one end. A second...
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6552689 |
Portable communication terminal
Disclosed is a portable communication terminal usable at multiple frequencies while being capable of achieving a reduction in specific absorption rate (SAR). The terminal includes two dipole...
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6549170 |
Integrated dual-polarized printed monopole antenna
An integrated dual-polarized printed monopole antenna includes a microwave substrate having a first surface and a second surface; a first monopole antenna disposed on the first surface of the...
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6545647 |
Antenna system for communicating simultaneously with a satellite and a terrestrial system
An antenna system for receiving both circularly polarized electromagnetic signals and linearly polarized electromagnetic signals, the circularly polarize signals arriving at the antenna system from...
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6542131 |
Apparatus for suppressing mutual interference between antennas
Apparatus for suppressing mutual interference between antennas placed close to each other, said apparatus consisting of at least one elongated suppressing element ( 5 ) of electrically conductive...
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6535175 |
Adjustable length antenna system for RF transponders
The present invention provides an RF tag having an antenna that can be selectively tuned to achieve optimal performance. The RF tag comprises an RF transponder integrated circuit and an antenna...
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6529167 |
Antenna with integrated feed and shaped reflector
An integrated feed system for an antenna includes a circuit board, a feed network formed on the circuit board, and a plurality of feed elements electrically coupled with the feed network and...
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6529170 |
Two-frequency antenna, multiple-frequency antenna, two- or multiple-frequency antenna array
A two-frequency antenna includes feeders 7 a and 7 b , inner radiation elements 2 a and 2 b connected to the feeders, outer radiation elements 3 a and 3 b , and inductors 4 a and 4 b ...
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6529171 |
Vertical polarization antenna
The invention concerns a vertical polarisation antenna comprising dipoles at different levels of an elongated vertical support structure. The invention is characterised in that it comprises only...
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6529172 |
Dual-polarized radiating element with high isolation between polarization channels
A radiating element for use in a dual-polarized radiating apparatus with isolation between polarization channels has a dielectric body having one or more conductive radiators thereon. The...
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6525695 |
Reconfigurable artificial magnetic conductor using voltage controlled capacitors with coplanar resistive biasing network
A frequency reconfigurable artificial magnetic conductor (AMC) includes a ground plane, a spacer layer disposed adjacent the ground plane and a plurality of vias in electrical contact with the...
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6525697 |
Archimedes spiral array antenna
A two-dimensional array design for an aperiodic array antenna. The design utilizes monopole or similar antenna elements that are arranged into the topology of an Archimedes spiral. The preferred...
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6518933 |
Low profile antenna
A dipole antenna is constructed of flexible conductive elements. These elements are encased in a flexible protective covering or attached to a semi-rigid substrate. This covering protects the...
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6515633 |
Radio frequency isolation card
One or more feedback elements generate a feedback signal in response to a transmitted signal outputted by each radiator of the antenna system. This feedback signal is received by each radiator,...
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6512482 |
Method and apparatus using a semiconductor die integrated antenna structure
A communication device ( 50 ) operating at a plurality of frequencies has a processor ( 36 ) coupled to a semiconductor die integrated antenna structure ( 30 ) having a first integrated antenna (...
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6512487 |
Wideband phased array antenna and associated methods
A wideband phased array antenna includes an array of dipole antenna elements on a flexible substrate. Each dipole antenna element has a medial feed portion and a pair of legs extending outwardly...
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6509882 |
Low SAR broadband antenna assembly
A low specific absorption rate broadband antenna assembly for use with a wireless communication device. The antenna assembly includes a driven element and a parasitic element which are operatively...
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6507321 |
V-slot antenna for circular polarization
The present invention relates to a circular polarized antenna comprising a planar dielectric substrate comprising a front and a back dielectric face, at least one subantenna means comprising a...
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6501436 |
Antenna apparatus and wireless apparatus and radio relaying apparatus using the same
Antenna elements ( 1 ) to ( 4 ) are arranged at both ends in a diamond shape, and are located opposite to each other, while a length (a) of one edge of this diamond shape is set to a ½ wavelength...
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6492957 |
Close-proximity radiation detection device for determining radiation shielding device effectiveness and a method therefor
A radiation detection device for locally detecting radiation of RF energy emissions from close proximity direct line-of-sight electromagnetic fields emitted by a wireless transmit/receive...
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6486836 |
Handheld wireless communication device having antenna with parasitic element exhibiting multiple polarization
A hand held wireless device, such as hand-held data device or cellular telephone, has a simple internal or partly internal antenna system. The antenna system consists of an essentially internal or...
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6480157 |
Foldable directional antenna
A foldable antenna includes a plurality of passive elements radially spaced apart from a center active element. The radial passive elements are joined to the active element to create a deformable...
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6480167 |
Flat panel array antenna
A flat panel antenna array for generating multiple beams across a wide frequency band. Radiating elements and feeds are supported on radiator boards disposed in parallel planes, all perpendicular...
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6480166 |
Planar printed circuit antenna
A planar printed circuit antenna ( 1 ) comprises a printed circuit board (PCB) ( 10 ) mounted on an insulative substrate ( 100 ), a plurality of electronic dipole units ( 20 ) and a coaxial feeder...
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6476773 |
Printed or etched, folding, directional antenna
An antenna array formed on 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...
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6466178 |
Small-size unidirectional antenna
A broadband folded dipole antenna has a pair of load resistors in the vicinity of the edges of the antenna element for obtaining a unidirectional beam pattern.
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6459415 |
Omni-directional planar antenna design
An omni-directional, planar folded dipole antenna and related quadrature phase shifter implemented on printed circuit boards (PCBs) having differing properties that are perpendicularly engaged. The...
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6429828 |
VHF/UHF self-tuning planar antenna system
A wide-band self-tuning antenna system for the reception of VHF/UHF signals includes planar antenna elements located on both the surfaces of a printed circuit board and a tuner unit which includes...
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6426730 |
Multi-frequency array antenna
An array antenna includes systematically arranged linear antennas belonging to two or more groups consisting of linear antennas operating at respective frequencies, so that the array antenna can...
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6424309 |
Broadband compact slot dipole/monopole and electric dipole/monopole combined antenna
A broadband compact antenna comprises an electric dipole or monopole coupled or connected in parallel to a slot antenna. The slot antenna is composed of a flat, square or rectangular conducting...
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6424311 |
Dual-fed coupled stripline PCB dipole antenna
A dipole antenna for selecting an antenna polarization plane of the strongest polarization energy includes at least two dipole antenna elements ( 1, 2 ) arranged perpendicularly to each other to...
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6417807 |
Optically controlled RF MEMS switch array for reconfigurable broadband reflective antennas
A method and apparatus for reconfiguring an antenna array by optical control of MEMS switches. A light source is provided to direct light to individual optically sensitive elements which control...
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6417813 |
Feedthrough lens antenna and associated methods
A feedthrough lens antenna includes first and second phased array antennas and a coupling structure connecting the first and second phased array antennas. Each phased array antenna may include a...
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6417816 |
Dual band bowtie/meander antenna
An internal dipole bowtie/meander antenna for a mobile terminal is capable of operating in two distinct RF bands. The antenna includes a resonating element and a ground element positioned on...
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6407717 |
Printed circuit board-configured dipole array having matched impedance-coupled microstrip feed and parasitic elements for reducing sidelobes
To reduce sidelobes in the radiation pattern of a phased array dipole antenna, a plurality of parasitic antenna elements are provided adjacent to the array of dipole elements of the antenna. The...
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6407710 |
Compact dual frequency antenna with multiple polarization
An asymmetrical dipole antenna is disclosed consisting of a planar conductor, matching network, and resonator. The antenna is compact, may operate on one or more frequency bands, and is suitable...
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6400332 |
PCB dipole antenna
A PCB dipole antenna ( 1 ) for placing in an electronic device includes a first dipole antenna element ( 2 ), a second dipole antenna element ( 3 ), a printed circuit board ( 4 ), a first feeder...
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6396456 |
Stacked dipole antenna for use in wireless communications systems
A dipole antenna for use with a mobile subscriber unit in a wireless communications system. The antenna is fabricated with printed circuit board (PCB) photo-etching techniques for precise control...
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6384797 |
Reconfigurable antenna for multiple band, beam-switching operation
A multiple band reconfigurable reflecting antenna array and method for multiple band operation and beam steering. An array of dipole antennas is disposed on a multiple band high impedance surface....
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6377227 |
High efficiency feed network for antennas
A printed antenna comprising a dielectric substrate, dipole elements formed on a surface of the substrate, a matching network for coupling a driving point to the antenna elements, whereby common...
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