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Patent Searching and Data


Matches 451 - 500 out of 2,790

Document Document Title
WO/2002/054533A1
An antenna comprising a substrate, a ground portion mounted on the substrate, a first radiation element disposed near the side face of the substrate, formed helically and having a center axis generally parallel to the side of the ground ...  
WO/2002/054539A1
By improving the structures of a spring and a c-ring, which are built inside a helical antenna, and thus enhancing the width of the band of the antenna, despite change in frequency, communication quality is less influenced, and subsequen...  
WO2002033783A3
A low cost, reduced complexity antenna fabrication scheme employs a section of thin, lightweight flex circuit decal, rather than a wire, as the antenna's radiation element. In order to support and contour the flex circuit decal in a thre...  
WO2000064003A9
The invention describes a system, method, and means for an MRI guidewire that can be visible on an MRI; can act as an antenna, and receive MRI signals from surrounding subject matter; and can allow the use of multiple interventional tool...  
WO/2002/049151A1
An antenna arrangement comprises a folded structure (100) comprising first and second sections (102,104) defining a transmission line. The sections may be meander-line elements or other physically-shortened electric elements, for example...  
WO/2002/045209A1
There is disclosed a meanderline loaded antenna comprising a ground plane, a plurality of vertical elements orthogonally affixed thereto, a driven vertical element affixed thereto and a horizontal element between the vertical elements. A...  
WO/2002/045208A1
When a contact terminal (11) is inserted from the lower end of a bobbin (12) and fixed in place, the contact terminal (11) is secured unremovably to a lower part of the bobbin (12) through action of raised pieces (11c). A turn down part ...  
WO/2002/037607A1
A planar type wideband LPDA antenna has an UHF band of 470 MHz to 752 MHz and comprises: a nonconductive substrate board having a low dielectric and a small loss of an electromagnetic wave; and an antenna pattern arranged on the noncondu...  
WO/2002/037609A1
An antenna for a telecommunications device, comprising at least three helical radiating elements substantially equally spaced about, and concentric to, a longitudinal axis of the antenna. The antenna has a different physical property alo...  
WO2002015329B1
An electromagnetic antenna (16, 17, 30) includes a multiply connected surface, such as a toroidal surface; first and second insulated conductors (18, 20); and first and second signal terminals (34, 36). The first insulated conductor (18)...  
WO/2002/033788A1
There is provided a helical antenna structure, which exhibits minimal influence from contact with a human body in a mobile terminal. In the helical antenna structure, a cap protrudes from an upper end of the mobile terminal, and a windin...  
WO/2002/033783A2
A low cost, reduced complexity antenna fabrication scheme employs a section of thin, lightweight flex circuit decal, rather than a wire, as the antenna's radiation element. In order to support and contour the flex circuit decal in a thre...  
WO2001045205A3  
WO/2002/031920A1
The invention concerns a source transmitting/receiving electromagnetic waves for multireflector antenna comprising longitudinal radiation means (12) operating in a first frequency band and an array of n progressive-wave-type radiating el...  
WO/2002/029925A1
An antenna module for a cellular phone which is capable of minimizing the effect of electromagnetic radiation of the cellular phone on the human body and enhancing the quality of speech of the cellular phone. The antenna module comprises...  
WO/2002/027861A1
A preferred compact antenna assembly of the invention includes a nonconductive hollow core plug (14). The core plug has a recessed pattern (22) on an outside surface into which a helical radiator (12, 12a) is wound. An end portion (31) o...  
WO/2002/025772A1
The present invention discloses a dual band antenna for a portable wireless device which can be suitably used for a cellular phone and a personal communication services (PCS) phone, by improving a spring structure of a helical antenna to...  
WO2001056469A3
The invention describes a system, method, and means for an MRI transseptal needle that can be visible on an MRI, can act as an antenna and receive MRI signals from surrounding subject matter to generate high-resolution images and can ena...  
WO/2002/023673A1
The invention concerns a helical antenna, comprising at least a helix consisting of at least two radiating strands, at least one of said strands consisting of at least two segments, the winding angles of at least two of said segments bei...  
WO2001009977A3
In a body-worn personal communications apparatus, for example a wrist-carried wireless telephone, an antenna (102) is a helical or other physically-shortened electric antenna. Such an antenna (102) has good performance in a range of orie...  
WO2001091227A3
A meander line loaded antenna (200) provides a wide instantaneous bandwidth with a first planar conductor (204) extending orthogonally from a ground plane (201), a second planar conductor (202) substantially parallel to the ground plane ...  
WO/2002/017434A1
There is disclosed a meanderline loaded antenna comprising a ground plane, two vertical elements orthogonally affixed thereto, and a horizontal element between the two vertical elements. A meanderline coupler interconnects the horizontal...  
WO/2002/015329A1
An electromagnetic antenna (16, 17, 30) includes a multiply connected surface, such as a toroidal surface; first and second insulated conductors (18, 20); and first and second signal terminals (34, 36). The first insulated conductor (18)...  
WO2000062672A9
The system, and methods of the present invention provide for MRI probes (23) adapted for insertion into a plurality of body orifices, in order to evaluate the anatomy of proximate anatomic structures, to diagnose abnormalities thereof, a...  
WO/2002/011241A1
A helical antenna is disclosed, produced by using wire in a rolling or winding process and comprising a helical piece and a contact piece. The spring properties of the contact piece permit advantageous contact-forming possibilities durin...  
WO/2002/009230A1
The inventive device has a spiral antenna formed by means of conductors which are arranged on the same plane and embodied in the form of a bifilar helix. Two space arrays are arranged on said plane and connected to conductors of two side...  
WO/2002/003496A1
A dual-band cellular telephone antenna. A monopole antenna is tuned to a first resonant frequency of operation. A first helical antenna (16) is coupled to the monopole antenna and has turns surrounding the monopole antenna, where the fir...  
WO/2001/099226A1
The phased array antenna comprises a first antenna element, a second antenna element and a signal splitter. The signal splitter includes an amplitude splitter and a phasing device and has a single feed. The amplitudes of, and phase relat...  
WO/2001/097323A1
An impedance matching circuit comprises a first matching circuit (8-1) adapted for impedance at a frequency (f2), a transmission line (6b) having a predetermined electrical length, and a second matching circuit (8-2) composed of an open ...  
WO/2001/093368A1
A cellular phone (1a) comprises a body case (10) and an antenna element (20a). The antenna element (20a) includes a meandering antenna (21) as a first antenna part arranged in the body case (10) and extending in one direction, and a seco...  
WO/2001/093369A1
A meander line loaded antenna (202) provides a wide instantaneous bandwidth with a first planar conductor (204) extending orthogonally from a ground plane (201), a second planar conductor (202) substantially parallel to the ground plane ...  
WO/2001/091227A2
A meander line loaded antenna (200) provides a wide instantaneous bandwidth with a first planar conductor (204) extending orthogonally from a ground plane (201), a second planar conductor (202) substantially parallel to the ground plane ...  
WO/2001/082410A1
The invention relates to an antenna for a motor vehicle, having the following parts and characteristics: a) a transparent window covered with a transparent, optically conductive plate on at least one side of any of the window material pl...  
WO/2001/082413A1
An array antenna (200) capable of use with a single signal feed has a transmission line oriented substantially parallel to a ground plane (220), which transmission line has a multiplicity of sequential sections with each sequential secti...  
WO/2001/080366A1
A combination satellite and terrestrial antenna system for a single-source application. A first embodiment includes a cross dipole for receiving the circularly polarized satellite signals, and a plurality of monopoles for receiving linea...  
WO/2001/080360A1
Magnetic and electric fields are generated using a super-toroidal conductor energised at frequencies greater than 2c/l where c is the speed of light and l is the length of the conductor which is wound super-toroidally. The resulting fiel...  
WO/2001/080359A1
Apparatus for creation of multidimensional and/or multidirectional electrical and/or magnetic fields for analysis or for treatment of a desired component of a specimen comprises a number of solenoid elements which are arranged in predete...  
WO/2001/078189A1
A device for connecting an external antenna to a mobile telephone comprises a first (7) and a second contact device. The first contactor device (7) is disposed on the mobile telephone and the second contactor device is electrically conne...  
WO/2001/067551A1
A transmitting and receiving antenna is provided for use with a portable terminal device for satellite or surface communications. Varactor diodes are provided on feeders to the elements of a helical antenna. The electrical length of the ...  
WO/2001/063784A1
A device and system (100) for providing a high-speed wireless communications network (300). The device (100) includes a number of individual antennas (108) that extend radially from a central axis (104) of the device (100). The antennas ...  
WO/2001/059475A1
The invention relates to a device for transmitting data in a motor vehicle and/or from a motor vehicle in the environment thereof. The inventive device comprises a first transmitter/receiver unit (1) in or on the motor vehicle and a seco...  
WO/2001/056469A2
The invention describes a system, method, and means for an MRI transseptal needle that can be visible on an MRI, can act as an antenna and receive MRI signals from surrounding subject matter to generate high-resolution images and can ena...  
WO/2001/052354A1
An antenna. The antenna (20) includes a first dielectric antenna rod having a first dielectric constant ($g(e)¿3?). The first dielectric antenna rod (22) is coupled to a first frequency transmission source (27) for propagating first fre...  
WO/2001/050545A1
Disclosed is an antenna having an electromagnetic radiation blocking function and a fabrication method thereof. A helical line is formed by winding a copper wire on a helical groove formed on a core, or using a spring instead of the core...  
WO/2001/047058A1
An antenna for a mobile communication terminal in which part of an antenna rod is slidably mounted into an assist antenna rod such that the antenna may be selectively extended in one or two stages. A connecting portion between the antenn...  
WO/2001/045208A1
An antenna device provided with a matching circuit (4) for accommodating reflection coefficients of antenna elements (1a, 1b, 1c, 1d), the reflection coefficients being defined in consideration of connections among the antenna elements (...  
WO/2001/045205A2
Multiple radio channel frequency signals that are modulated with respective information modulation are transmitted from a common antenna at multiple radio frequencies. Multiple modulators are provided. Each modulator generates at least o...  
WO/2001/045204A1
One matching circuit (8-2) comprises a transmission line (6b) of a predetermined electrical length and a parallel resonance circuit (5) connected in parallel with the transmission line. The resonance circuit has a resonant frequency f2 a...  
WO/2001/043227A1
An antenna device comprises a transmitting and receiving antenna unit. The transmitting and receiving antenna unit includes a driven element attached to a case and a helical element connected electrically with, and movable relative to, t...  
WO/2001/041254A1
Two antenna elements (1, 2) of one wavelength are bent in their middle portions to form a rhombus, in which the antenna elements are connected to a feeder (3) on one end while they are open on the other end (4). The angle ($g(a)) made at...  

Matches 451 - 500 out of 2,790