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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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 ...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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 ...
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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...
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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...
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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...
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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...
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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 (...
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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...
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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...
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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...
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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...
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WO/2001/039319A1 |
The invention concerns a broad-band antenna, characterised in that it comprises in a common plane two symmetrical parts (2, 3) each including at least two interconnected conductor strands (4, 5, 7, 8; 19, 20 21) powered by a double-wire ...
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WO/2001/037368A1 |
A mobile satellite communication terminal which provides dual mode communication and has a small volume even when it is carried because dual-mode antennas are contained/installed in a structure simpler than conventional. A method for usi...
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WO/2001/033668A1 |
The invention provides a small dielectric antenna capable of easily changing the frequency band and bandwidth and unlikely to deteriorate its performance. The dielectric antenna includes feeder terminals attached to the upper surface, lo...
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WO/2001/033666A1 |
A dual mode antenna assembly (400) has a quadrifilar antenna (410) assembly for satellite communications and a monopole antenna for terrestrial communications. The satellite antenna is positioned concentrically around and external to the...
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WO/2001/031736A1 |
A support member consisting of a flexible resin bar is inserted in a helical element. The helical element is a densely wound helical wire of a conductor covered with an insulating material, and the lower end of the conductor is exposed w...
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WO/2001/028040A1 |
A dual pattern antenna (FIG. 1, 20) functions as a bi-filar or quadrifilar helical antenna depending of the location of the feed element (FIG. 4, 120). When the feed element (120), within the hollow dielectric tube (FIG. 4, 140), is used...
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WO/2001/028033A1 |
An antenna (11) particularly suitable for a portable communication device and including an elongate portion (12) integrally formed with at least one first coil portion (14) arranged about the elongate portion (12) and in at least partial...
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WO/2001/024315A1 |
A plurality of helical elements (11-14) are helically formed around the outer peripheral surface of an insulated cylindrical antenna main body (2) in order to miniaturize the antenna and to make it portable. The helical elements (11-14) ...
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WO/2001/020715A1 |
An antenna mainly used for portable telephones and a communication terminal comprising the same are disclosed. The range in which the impedance of the antenna is adjusted is widened by increasing the number of structure parameters for ad...
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WO/2001/020716A1 |
The present invention relates to an antenna arrangement (100, 300) comprising a first antenna element in form of a microstrip element (110, 310), a second element (130, 230) and a third element (140, 340) in form of whip element. The sec...
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WO/2001/018908A1 |
A multifilar antenna (200) comprises n spaced antenna filaments, where n is an integer greater then 1; a matching circuit (210) for matching the characteristic impedance of the antenna to that of a transmitting and/or receiving apparatus...
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WO/2001/017061A1 |
The invention relates to a multiband antenna, especially for mobile radiotelephone service devices with a multi-side support (1) and two or more circuit-board conductors (2, 3) representing the transmitting and/or receiving device in dif...
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WO/2001/015267A1 |
A personal communications apparatus comprises an elongate body (202) incorporating an antenna diversity arrangement in which first and second antennas (102A, 102B) are located at opposite ends of the body. In one embodiment a microphone ...
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WO/2001/011717A1 |
The present invention relates to an antenna arrangement (10), comprising a first antenna element (12), a second antenna element (14), a third antenna element (15) being a socket and electrically connected to said second antenna element a...
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WO/2001/009977A2 |
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...
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WO/2001/009978A1 |
A radio device comprises a receiving circuit and/or a transmitting circuit, and an antenna assembly including a receiving antenna coupled to the receiving circuit and/or a transmitting antenna coupled to the transmitting circuit. The ant...
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WO/2001/010018A1 |
The present invention addresses the need for an apparatus and method for controlling the load of a PA, to improve PA efficiency in linear transmitters with isolator elimination (IE) circuitry, that does not require the use of high freque...
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