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7598921 |
Folded antenna
An antenna element 1 is formed such that a plurality of turning parts 13, 15, 17 are formed by being turned back in zigzag in parallel to a ground conductor film 2 while extending...
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7557759 |
Integrated multi-band antenna
An integrated multi-band antenna has a first radiating conductor, a second radiating conductor spaced from the first radiating conductor, a trap element connected to the first and second radiating...
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7538738 |
Tag-use antenna and tag using the same
The present invention relates to a tag-use antenna allowing a miniaturization while maintaining a constant minimal change of a communication distance. The tag-use antenna has a feed part of a...
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7522119 |
Multiband antenna with removed coupling
A multiband antenna with removed coupling includes a radiator formed as a meander line bent zigzag several times and having a gap filling part in at least one area between neighboring meander...
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7486241 |
Low profile full wavelength meandering antenna
A low profile antenna has a meander length based on the full electrical wavelength of the signal being transmitted or received. The antenna can have either an open-loop structure or a closed-loop...
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7425894 |
Security element for radio frequency identification
A security element for RF identification and a process for the production of such a security element. The security element has a flexible, electrically non-conducting substrate layer and a...
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7315286 |
Antenna apparatus for portable terminal
Provided is an antenna apparatus for a portable terminal including a first antenna pattern, and a second antenna pattern formed to correspond to the first antenna pattern, so that the second...
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7205954 |
Meander line antenna
A meander line antenna formed in the shape of meander is disclosed. The meander line antenna includes a bottom half section that is constituted by a folded conductive pattern of a folded dipole...
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7193516 |
Radio frequency identification tag apparatus for tire in radio frequency identification system
The present invention discloses a radio frequency identification tag apparatus for a tire in a radio frequency identification system (hereinafter, referred to as a ‘RFID system’). The radio...
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7190320 |
Antenna and dielectric substrate for antenna
An antenna comprises a ground pattern, and a planar element that is fed and equipped with a cut-out portion provided from the farthest edge portion formed from the feed position toward the ground...
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7190319 |
Wave antenna wireless communication device and method
A wireless communication device coupled to a wave antenna that provides greater increased durability and impedance matching. The wave antenna may be in the form of a polygonal, elliptical curve...
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7138955 |
Robust antenna connection for an electronics component assembly in a tire
An electronics component assembly is provided. The assembly includes a tire along with a mounting member that may include means for securing an antenna incorporated in the tire. At least a first...
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7132999 |
Meander line antenna
A meander line antenna formed by folding a conductive pattern of a folded dipole antenna in the shape of meander is disclosed. The basic structure of the meander line antenna includes a bottom half...
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7098861 |
Hooked stub collinear array antenna
A hooked stub collinear array antenna formed from a single conductor. The antenna operates at a design frequency having an associated wavelength. The antenna includes a plurality of radiating...
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7093345 |
Wave antenna wireless communication device and method
A wireless communication device coupled to a wave antenna that provides greater increased durability and impedance matching. The wave antenna is a conductor that is curved in alternating sections....
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7091841 |
Tire electronics assembly having a multi-frequency antenna
A tire assembly with integrated electronic components includes a tire structure and an integrated electronics assembly, which preferably includes at least a radio frequency (RF) device and a...
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7042415 |
Dual band and broadband flat dipole antenna
A dual band and broadband flat dipole antenna comprises a first radiating body, a second radiating body, and a conductivity element. The first radiating body has two first frequency-radiating...
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7006051 |
Horizontally polarized omni-directional antenna
An antenna apparatus comprising bent dipoles and fed by a quarter-wave balun transformer with a single coaxial cable feed is disclosed. In this embodiment, the antenna elements are patterned onto a...
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6958727 |
Diversified planar phased array antenna
A diversified planar phased array antenna includes a dielectric plate, at least two antenna units, at least one first micro-strip line and a ground layer. Two antenna units formed on the dielectric...
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6882319 |
Antenna module whose antenna characteristics are not adversely affected by a mother board
A chip-type antenna and a snaked, band-shaped conductor as a pair of radiation elements fed at the center, a circuit unit having a transmission/reception circuit that is connected to respective...
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6870506 |
Multi-frequency antenna with single layer and feeding point
A multi-frequency antenna with a single layer and a single feeding point, and especially an improved microstrip antenna with its bandwidths simplified and enlarged, it has a central microstrip with...
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6836253 |
Transmitting and/or receiving unit for incorporation into an elastic structure
The invention is directed to a transmitting and/or receiving unit for building into an elastic structure. The transmitting and receiving unit includes one or more electronic circuits or circuit...
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6809698 |
Broadband dual-frequency tablet antennas
A broadband dual-frequency tablet antenna comprises a set of dipole antennas, a baseplate, and an inductive investing-piece, in which a positive and a negative pole of the antenna-set disposed on...
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6717551 |
Low-profile, multi-frequency, multi-band, magnetic dipole antenna
Multi-frequency, low-profile, capacitively loaded magnetic dipole antennas to be used in wireless communications. Each antenna comprises one to n antenna elements and each element having one to n...
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6686893 |
Dual band antenna
A dual band antenna ( 1 ) includes a printed wiring board (PWB) ( 20 ). The PWB has an antenna trace ( 10 ) and a grounding plate ( 30 ) respectively disposed on opposite surfaces ( 20 a, 20 b )...
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6674405 |
Dual-band meandering-line antenna
A microstrip meandering-line antenna for a wireless communications system includes a substrate, a meandering-line conductor, and a feeding wire. The substrate, which is made of a dielectric...
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6573874 |
Antenna and radio device
Two one-wavelength antenna elements ( 1 ) and ( 2 ) arranged in diamond-wise opposition to each other so that one-ends of the antenna elements ( 1 ) and ( 2 ) are provided with a feeding portion (...
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6480169 |
Method and apparatus for receiving signals in two different frequency bands using a single antenna
The invention provides for the reception of a L-band signals and MF-band signals using a single antenna element by employing an L-band antenna in conjunction with a connection cable that acts to...
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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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6362784 |
Antenna unit and digital television receiver
The present invention provides an antenna device comprising a conductive substrate and an antenna element located in the proximity of the conductive substrate, in which a portion of the antenna...
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6337667 |
Multiband, single feed antenna
A multiband antenna operates in at least a first frequency band and a second frequency band, a higher frequency band. A dipole has a first conductive leg and a second conductive leg and may be...
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6292154 |
Antenna device
An antenna device includes radiation elements formed on a common antenna board, a feeding unit for feeding the radiation elements, and a ground plate provided in electrically-spaced relation to the...
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6236373 |
Vehicle sun visor with radio antenna
A vehicle sun visor, provided with a radio absorptive conductor acting as a radio antenna, is disclosed. The vehicle sun visor, having a panel shape, is installed on the front portion of the...
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6140974 |
Antenna arrangement
The present invention provides an auxiliary or side lobe cancelling antenna particularly for horizontally polarised main antennas. The auxiliary antenna arrangement for cancelling side lobe...
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6104349 |
Tuning fractal antennas and fractal resonators
A first fractal antenna of iteration N≥2 in free space exhibits characteristics including at least one resonant frequency and bandwidth. Spacing-apart the first fractal conductive element from a...
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6094177 |
Planar radiation antenna elements and omni directional antenna using such antenna elements
An antenna of the long frame-type wherein the ratio between the long side and the short side is between 1:4 and 1:8 and the length of the long side is equivalent to one wavelength of the central...
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6037912 |
Low profile bi-directional antenna
A low profile bi-directional antenna is provided for mounting directly to a metal structure, or some other conductive or semi-conductive surface. The antenna includes an insulating antenna tray, a...
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6028567 |
Antenna for a mobile station operating in two frequency ranges
The invention comprises an antenna structure particularly suitable for mobile stations operating on two frequency ranges. As a supporting component and also as component determining the electrical...
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6016127 |
Traveling wave antenna
A flat strip-like radiator is angled along the width of the strip to form radiating arms of predetermined length and angles to radiate a design radiation patter. The flat strip is secured to a...
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5969687 |
Double-delta turnstile antenna
This antenna has two sets of conductors. Each set is two coplanar triangles with a corner from each triangle at the center and with the two triangle sides opposite those corners being positioned...
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5966098 |
Antenna system for an RF data communications device
An RF data communications device antenna system is shown that includes a dipole and an electromagnetic coupler that provides coupling between each dipole arm to establish a desired resonant...
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5900844 |
Wide bandwidth antenna arrays
A skewed Log Periodic Dipole Array (LPDA) used as the element in a linear or planar array, serves to remove the element spacing restriction and hence eliminates the grating lobe problem. The skewed...
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5826328 |
Method of making a thin radio frequency transponder
Manufacturing of a novel thin and flexible radio frequency (RF) tag with a stamped metal leadframe antenna is disclosed. The tag is made by transporting a leadframe strip having leadframe antenna...
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5793336 |
Conformal antenna assemblies
A conformal antenna assembly disclosed has a first antenna portion sensitive to a UHF band of frequencies. A thin, flat, low-profile, weather-resistant housing encloses the first antenna portion....
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5764195 |
UHF/VHF multifunction ocean antenna system
A multifunction antenna system is selectively operative over the UHF and VHF frequency ranges using a novel arrangement of symmetrically disposed phased radiating elements that function as a dipole...
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5649350 |
Method of mass producing printed circuit antennas
A method of mass producing printed circuit antennas is disclosed including the steps of providing a substrate of dielectric material having a first side and a second side, removing portions of the...
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5517206 |
Broad band antenna structure
An antenna structure is provided having one or more spiral antenna arms extending outwardly from a lateral center axis. Each arm is defined by an antenna element disposed in a zig-zag configuration...
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5418545 |
Variable length slot fed dipole antenna
A slot fed antenna is disclosed for use in radiating energy. The antenna includes a flat conductive member having an elongated vertically-oriented slot dividing the member into a pair of...
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5103238 |
Twisted Z omnidirectional antenna
An omnidirectional antenna provides circular and elliptically polarized electromagnetic waves. The antenna constitutes first and second elements as the only radiating portions of the antenna. Each...
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4987424 |
Film antenna apparatus
An antenna apparatus in which flexible antennas made of a conductive material are formed on a flexible insulating sheet. An insulating film made of a synthetic resin material is used as the...
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