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Patent Searching and Data


Matches 501 - 550 out of 2,819

Document Document Title
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...  
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 ...  
WO2001010018A8
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...  
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...  
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...  
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...  
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...  
WO2000064003A8
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/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...  
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...  
WO2000016439A3
The invention relates to an antenna which can be operated in several frequency bands. The inventive antenna has at least one part (1) that encloses an area and at least one part (2) that does not enclose an area. The at least two parts (...  
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) ...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
WO2000064003A3
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/2001/004989A1
In a whip antenna in which a second antenna element (2) are enclosed in a mold of resin material together with one end of a conductive sleeve (6), a coating portion (9) is made of the resin material to cover a first antenna element (1). ...  
WO/2001/003234A1
An antenna (28) for use in a wireless communication module (10) includes a shield plate (40), an antenna loop element (42), and a transmission line element (44). The wireless communication module (10) also includes a receiver (37) having...  
WO/2001/003239A1
The invention relates to a helical antenna (1) which can be supplied with various radiating characteristics in different modes. The helical antenna (1) comprises four electrically conductive helical limbs (11, 12, 13, 14) which are guide...  
WO/2001/001519A1
A directional antenna, on a periphery or one side of which is provided an electromagnetic interference suppressor (3) composed of the magnetic compound that contains oxide-coated magnetically soft powder. This antenna is suitable for a s...  
WO/2001/001518A1
A helical antenna is fed in a noncontact manner. The helical antenna (15) is inserted in a position opposed to the slots (3a-3d) in a noncontact manner inside the dielectric cylinder (1). The strip conductors (4a-4d) are perpendicular to...  
WO/2000/079649A1
The invention relates to a device for transmitting and/or receiving electromagnetic waves, comprising at least one radiating element for radiating circular polarization in a given direction. The invention is characterized in that it comp...  
WO/2000/079644A1
An antenna device for several frequency bands comprises two radiating elements. The first element is a rod arrangement (22) which radiates in several frequency bands, while the second element (15) includes a pattern of conductor portions...  
WO/2000/077951A1
A method for controlling the radiation pattern of an antenna means (1) comprising N helically configured radiating elements (12¿1?-12¿N?), where N is an integer greater than 1, an antenna system, comprising N helically configured radia...  
WO/2000/077885A1
The present invention relates to an antenna arrangement in a communication apparatus (8) for single, dual and/or multi-band frequency including at least two antenna elements (20, 30): a first antenna element (20) having a first (21) and ...  
WO/2000/074173A1
A dielectrically-loaded antenna for operation at frequencies in excess of 200 MHz includes an antenna element structure disposed on a high dielectric constant core, which element structure comprises a pair of laterally opposed groups of ...  
WO/2000/072405A1
An apparatus (10), system and method for providing audio broadcast signals received from a satellite radio receiver (30). A window clip (12) having an integral transmission line (16) is mounted on the edge of a vehicle window (14). The i...  
WO2000062672B1
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/2000/070710A1
Disclosed is a helical antenna manufacturing apparatus and method. A controller controls a core driver and a roller driver to rotate a core and a roller according to an rpm which is pre-set according to diameters of the core and the roll...  
WO/2000/070571A1
A remote data collection system for collecting usage data from an endpoint. The monitoring module (40) has a wireless transmitter to transmit the usage data. The system also includes a receiver (100) to receive usage data from the wirele...  
WO/2000/069015A1
A feeding or decoupling device for coaxial lines has a spur line (SL) which is short-circuited at the end. The aim of the invention is to provide at least one simple coaxial line with a broadband connection between the inner and outer co...  
WO/2000/062672A1
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/2000/064003A2
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/2000/060697A1
A rear case (13) of those that compose a cellular phone includes part of a case body (10) and an antenna mount (11). An antenna (2) for transmitting and receiving radio waves for satellite communications comprises a cylindrical driver el...  
WO/2000/059069A1
An antenna for transmitting information by means of electromagnetic fields in free space is formed as a supertoroidal conductor, comprising a helical coil of wire with the coil itself being wound helically around a toroidal former to for...  
WO/2000/059070A1
The present invention represents an integrated antenna assembly comprising a cellular communications antenna and a satellite communications antenna. Such an antenna assembly can, therefore, be used for communications over either frequenc...  
WO2000028621A9
An electromagnetic wave is transmitted from and received by an antenna system (300) having a cavity member (310), a passive antenna element (320) and a driver element (330). The cavity member has a back portion (311) and a wall portion (...  
WO/2000/052785A1
A self-resonant vertically polarized folded unipole antenna for long wave (LW), medium wave (MW) broadcasting and for the 160 meter amateur radio band with a grounded tower connected to radially descending fold wires terminated near the ...  

Matches 501 - 550 out of 2,819