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| Number | Title | Issue Date |
| 7405638 | Coaxial waveguide microstructures having an active device and methods of formation thereof Provided are coaxial waveguide microstructures. The microstructures include a substrate and a coaxial waveguide disposed above the substrate. The coaxial waveguide includes: a center conductor; an outer conductor including one or more walls, spaced apart from and di... | 07/29/2008 |
| 7400222 | Grooved coaxial-type transmission line, manufacturing method and packaging method thereof Disclosed herein are a transmission line of coaxial type and a manufacturing method thereof, capable of preventing a radiative signal loss of signal lines during transmission of an RF signal and removing signal interference between adjacent signal lines, thus allowi... | 07/15/2008 |
| 7391637 | Semiconductor memory device with high permeability composite films to reduce noise in high speed interconnects A memory device is provided with a structure for improved transmission line operation on integrated circuits. The structure for transmission line operation includes a first layer of electrically conductive material on a substrate. A first layer of insulating materia... | 06/24/2008 |
| 7362283 | Multilevel and space-filling ground-planes for miniature and multiband antennas An antenna system includes one or more conductive elements acting as radiating elements, and a multilevel or space-filling ground-plane, wherein said ground-plane has a particular geometry which affects the operating characteristics of the antenna. The return loss, ... | 04/22/2008 |
| 7343102 | Optical transmission system with automatic signal level adjustment and startup functions An optical transmission system with automatic startup functions to optimize the power level of optical signals entering each optical amplifier and operate those amplifiers in appropriate mode. In the process of starting up an optical transmission system, upstream an... | 03/11/2008 |
| 7323640 | Shield cable, wiring component, and information apparatus A shield cable, in which a winding looseness of a shield layer due to twisting can be decreased and a short-circuit between a shield layer and signal conductor as well as a disconnection of the signal conductor is prevented, and a wiring component and information ap... | 01/29/2008 |
| 7301097 | Printed-circuit board and electronic device A printed-circuit board includes a shield pattern layer that is stacked on a surface layer with respect to at least one wiring pattern layer that includes a wide-pattern area having a wiring width of more than 1 millimeter. Moreover, the shield pattern layer include... | 11/27/2007 |
| 7286029 | Passive devices formed in grooves on a substrate and a method of manufacture A method for constructing passive devices on a substrate and a device is provided that is fabricated in accordance with the a method. The method includes the steps of: forming a plurality of grooves on a surface of the substrate by using an anisotropic etching proce... | 10/23/2007 |
| 7281326 | Technique for routing conductive traces between a plurality of electronic components of a multilayer signal routing device Techniques for reducing the number of layers in a multilayer signal routing device are disclosed. The technique may be realized as a method for routing one or more conductive traces between a plurality of electronic components of a multilayer signal routing device. ... | 10/16/2007 |
| 7263392 | Superconductor transmission line having slits of less than λ /4 A transmission line is provided which has a low loss and can flow large current. A superconductor transmission line has: an internal conductor; and an external conductor surrounding the internal conductor, made of oxide superconductor and having four planes, which f... | 08/28/2007 |
| 7259644 | Substrate having microstrip line structure, semiconductor device having microstrip line structure, and manufacturing method of substrate having microstrip line structure A substrate having a microstrip line structure is provided comprising a trench provided at least in one main surface of a base body constituting the substrate having an inner surface geometry of an unbent curved surface and corresponding to the pattern of the micros... | 08/21/2007 |
| 7259640 | Miniature RF and microwave components and methods for fabricating such components RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of deposited layers of material, that may include switches, inductors, ant... | 08/21/2007 |
| 7249953 | Zero insertion force high frequency connector A method for interconnecting two circuit boards includes positioning corresponding shielded land areas on circuit boards, the land areas including conductive core areas and conductive outer areas around the core areas. A block-like signal array is positioned between... | 07/31/2007 |
| 7239219 | Miniature RF and microwave components and methods for fabricating such components RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of deposited layers of material, that may include switches, inductors, ant... | 07/03/2007 |
| 7182104 | Collapsible duct A duct for containing a cable and method for mounting the cable therein include providing the duct with a collapsible or flexible wall movable between a contracted condition for mounting the duct in a conduit and an extended condition of increased cross-sectional ar... | 02/27/2007 |
| 7180394 | Millimeter wave (MMW) radio frequency transceiver module and method of forming same A low cost and high performance millimeter wave (MMW) radio frequency transceiver module includes a substrate board and plurality of microwave monolithic integrated circuit (MMIC) chips supported by the substrate board and arranged in a receiver section, a local osc... | 02/20/2007 |
| 7148772 | Coaxial waveguide microstructures having an active device and methods of formation thereof Provided are coaxial waveguide microstructures. The microstructures include a substrate and a coaxial waveguide disposed above the substrate. The coaxial waveguide includes: a center conductor; an outer conductor including one or more walls, spaced apart from and di... | 12/12/2006 |
| 7091734 | Electroconductive contact unit In the electroconductive contact unit of the present invention, an electroconductive needle member 2 is made of a noble metal alloy having a high hardness and wear resistance, and formed with a gold plated layer 8 via a Ni under layer 7, and a f... | 08/15/2006 |
| 7061347 | High frequency substrate comprised of dielectric layers of different dielectric coefficients A high frequency substrate includes a first metal layer, a first dielectric layer, a second metal layer, a second dielectric layer and a high-frequency signal transmission line. The first dielectric layer is formed on the first metal layer, and the second metal laye... | 06/13/2006 |
| 7053735 | Waveguide in multilayer structures and resonator formed therefrom The idea of the invention is to fabricate a multilayer coaxial transmission line into a printed circuit. The outermost conductor is fabricated by conductive strips in different layers, using conductive via posts in isolation layers connecting the strips. The innermo... | 05/30/2006 |
| 7049901 | Parallel plate wave-guide structure in a layered medium for transmitting complementary signals A parallel plate wave-guide structure in a layered flexible/formable medium for transmitting complementary signals, including: at least two parallel signal conductor plates, placed in substantially close proximity, separated by a conductor-to-conductor dielectric ma... | 05/23/2006 |
| 7046118 | Signal processing circuit board with variable resistor which is hardly declined in the mechanical strength while its variable resistor is not limited to one particular location for the installation A signal processing circuit board includes a board body, a variable electronic element, and a hole. The variable electronic element is mounted in a mounting side of the board body. The variable electronic element has an operating member to control an output outputte... | 05/16/2006 |
| 7026544 | RF system for an MRI apparatus, provided with bead-shaped spacers RF connection cable 2 for interconnecting an RF coil and an RF processing apparatus in an RF system of a medical MRI apparatus. The connection cable 2 is comprised of an outer sleeve 6 enclosing an inner cable comprising RF conductors 24,... | 04/11/2006 |
| 7023295 | Transmission line having photonic band gap coplanar waveguide structure and method for fabricating power divider using the same A photonic band gap coplanar waveguide transmission line and a method for fabricating a power divider using the same capable of increasing a characteristic impedance, increasing a signal line width of the transmission line and providing high power, includes: a groun... | 04/04/2006 |
| 7012489 | Coaxial waveguide microstructures and methods of formation thereof Provided are coaxial waveguide microstructures. The microstructures include a substrate and a coaxial waveguide disposed above the substrate. The coaxial waveguide includes: a center conductor; an outer conductor including one or more walls, spaced apart from and di... | 03/14/2006 |
| 6975189 | On-chip multilayer metal shielded transmission line Multi-layer metal-shielded monolithic transmission lines are formed in side-by-side arrangement by depositing parallel planar thin film, conductive layers, separated by nonconductive separator layers to form a stack of alternating conductive and nonconductive layers... | 12/13/2005 |
| 6958670 | Offset connector with compressible conductor A connector providing an offset interconnect has a dielectric body with first and second longitudinally opposed and laterally offset portions and an internal cavity. An offset electrically conductive path is disposed within the internal cavity. The offset electrical... | 10/25/2005 |
| 6943319 | Triaxial heating cable system A cut-to-length heating system including a heating cable having a first conductor with a first resistivity and a second conductor with a second resistivity. The heating cable having a first end and a second end with the first conductor being electrically connected t... | 09/13/2005 |
| 6939175 | Coaxial cable for overvoltage protection A coaxial cable for transmitting high frequency signals includes includes a body having a center conductor and a shield formed coaxially around the center conductor and separated from the center conductor by a layer of dielectric having an annular layer of electro-s... | 09/06/2005 |
| 6910897 | Interconnection system An interconnection system includes spacers arranged adjacent each other in a row, the spacers having cable sections disposed therein. Each cable section has at least one center conductor and an outer conductive shield. All of the cable sections have one end exposed ... | 06/28/2005 |
| 6911877 | Coplanar waveguide launch package A signal transition device such as a coplanar waveguide launch package is disclosed. The coplanar waveguide launch package has a first portion and a second portion. The first portion is adapted to receive electrical signals from a conductive wire. The received signa... | 06/28/2005 |
| 6909729 | Dielectric waveguide with transverse index variation that support a zero group velocity mode at a non-zero longitudinal wavevector Optical components including a laser based on a dielectric waveguide extending along a waveguide axis and having a refractive index cross-section perpendicular to the waveguide axis, the refractive index cross-section supporting an electromagnetic mode having a zero... | 06/21/2005 |
| 6900390 | Flexible microstrip signal and power bus cable A multi-layered, flat, flexible cable capable of transmitting both power and multiple control signals to the components of a network is disclosed. The cable provides all connections on its top surface using a via-less design that does not reduce the cross-sectional ... | 05/31/2005 |
| 6847274 | Multilayer coaxial structures and resonator formed therefrom The idea of the invention is to fabricate a multilayer coaxial transmission line into a printed circuit. The outermost conductor is fabricated by conductive conduit strips in different layers, using conductive via posts in isolation layers connecting the strips. The... | 01/25/2005 |
| 6816040 | Broadband rigid coaxial transmission line A broadband coaxial transmission line is formed by joining smaller coaxial transmission lines having particularly formulated lengths. Insulating supports in the transmission line are situated in a prescribed manner to reduce reflections along the transmission line. ... | 11/09/2004 |
| 6816039 | Coaxial split-bead glass-to-metal seal for high frequency transmission line Support structure for high frequency coaxial transmission line. A conductive bead ring is split in two halves longitudinally, containing a relief for excess glass flow and provision for locking the halves together. A glass dielectric surrounds the center conductor, ... | 11/09/2004 |
| 6724282 | Structure of digital transmission line A structure of digital transmission line having a core material, a middle material layer and a coating layer. The core material is a transmission medium enveloped with an insulation PE foam layer. The coating layer includes at least one layer and is made of polyviny... | 04/20/2004 |
| 6717494 | Printed-circuit board, coaxial cable, and electronic device Occurrence of EMI is reduced without a sharp increase of the manufacturing cost by suppressing a common mode current stably. There is provided a disclosed printed-circuit board being adapted such that a width of an outer edge section of a T-shaped pattern is widened... | 04/06/2004 |
| 6717493 | RF cable having clad conductors and method of making same An RF coaxial cable with clad conductors includes an inner tubular conductor having a first base layer formed of a relatively higher conductivity material, and a first bulk layer formed of a relatively lower conductivity material. The first base layer of higher cond... | 04/06/2004 |
| 6700458 | Device and method for coupling two circuit components which have different impedances An AC power feed device for conducting electrical power from a source to a load. The feed device has a constant characteristic impedance along its length and an outer periphery that varies in size progressively along its length, or the feed device has an ... | 03/02/2004 |
