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| Number | Title | Issue Date |
| 7983728 | Resonator comprised of a bent conductor line with slits therein and a filter formed therefrom According to an aspect of the present invention, there is provided a resonator including: a transmission line including a conductor line with a bent portion, wherein the conductor line has a plurality of slits formed therein, the slits being formed in an extending d... | 07/19/2011 |
| 7983727 | Superconductor filter unit In a wall of a package base made of aluminum or aluminum alloy, there is formed a through-hole, through which a semi-rigid coaxial cable passes. A central conductor of the semi-rigid coaxial cable is joined to an electrode with a solder material. The semi-rigid coax... | 07/19/2011 |
| 7970447 | High frequency filter having a solid circular shape resonance pattern with multiple input/output ports and an inter-port waveguide connecting corresponding output and input ports A resonance pattern (21) made of conductive material and having a circular plan shape is formed over the principal surface of a dielectric substrate. First and second virtual straight lines mutually crossing at a right angle are defined. A first input port ( | 06/28/2011 |
| 7945300 | Plural channel superconducting filter circuit having release of resonance frequency degeneracy and usable in radio frequency equipment There is provided a signal processing method comprising: inputting an input signal having a certain band; dividing said input signal into a signal in a stop band and a signal in a pass band outside said stop band with a use of a band stop filter which has a center f... | 05/17/2011 |
| 7907984 | High frequency filter having a solid circular shape resonance pattern with multiple input/output ports and an inter-port waveguide connecting corresponding output and input ports A resonance pattern (21) made of conductive material and having a circular plan shape is formed over the principal surface of a dielectric substrate. First and second virtual straight lines mutually crossing at a right angle are defined. A first input port ( | 03/15/2011 |
| 7904129 | Superconducting device with a disk shape resonator pattern that is adjustable in bandwidth A superconducting device comprises a dielectric substrate, and a plane-figure type resonator pattern made of a superconductive material and formed on a first face of the dielectric substrate. The resonator pattern has a notch at least a portion of which is round. | 03/08/2011 |
| 7894867 | Zig-zag array resonators for relatively high-power HTS applications A narrowband filter comprises an input terminal, an output terminal, and an array of basic resonator structures coupled between the terminals to form a single resonator having a resonant frequency. The resonator array may be arranged in a plurality of columns of bas... | 02/22/2011 |
| 7774034 | Signal switching device A signal switching device including a plurality of transmission paths connected to an input path, the signal switching device outputting a signal from the input path through one of the transmission paths, including a first variable impedance unit connected to a firs... | 08/10/2010 |
| 7761125 | Intermodulation distortion reduction methodology for high temperature superconductor microwave filters Intermodulation distortion (IMD) is known to be an impediment to progress in superconductor-based filter technology. The present invention's methodology for reducing IMD can open doors to heretofore unseen practical applications involving high temperature supercondu... | 07/20/2010 |
| 7742793 | Microstrip filter including resonators having ends at different coupling distances A method and apparatus to provide appropriate coupling between resonators in an HTS microstrip filter are disclosed. Primary and secondary couplings between a pair of resonators are utilized. With a given spacing, the primary coupling is fixed, while the secondary c... | 06/22/2010 |
| 7738933 | Varactor tuning for a narrow band filter having shunt capacitors with different capacitance values An apparatus for providing dynamic and remote tuning of a cryo-cooled bandpass filter is disclosed. The device includes resonator element and a voltage sensitive element as part of the capacitance in a narrow band filter circuit. A varactor such as a GaAs varactor m... | 06/15/2010 |
| 7734319 | Dual-mode superconductive filter having an opening pattern in a ground plane A superconductive device that includes a ground film made of the superconductive material, wherein part of the ground film has an opening pattern. ... | 06/08/2010 |
| 7676252 | Filter circuit having plural resonator blocks with a phase adjustment unit A filter circuit includes an input terminal configured to input an input signal; first to ith blocks which have first to ith resonators as transmission lines having first to ith resonance frequencies; a power divider configured to distribute the input signal to the ... | 03/09/2010 |
| 7650174 | Superconductive filter capable of easily adjusting filter characteristic and filter characteristic adjusting method A resonator pattern made of superconductive material is disposed over a first surface of a base substrate made of dielectric. An adjustment substrate made of dielectric is disposed facing the first surface at a distance from the first surface. The adjustment substra... | 01/19/2010 |
| 7610072 | Superconductive stripline filter utilizing one or more inter-resonator coupling members An inter-resonator coupling scheme for a filter is disclosed. An inter-resonator coupling member is located between successive resonators in the filter. By adjusting the length and/or the proximity of the inter-resonator coupling member relative to the adjacent reso... | 10/27/2009 |
| 7587229 | Superconducting tunable filter having a patch resonator pattern tuned by a variable dielectric constant top plate A superconducting tunable filter comprises a dielectric base plate; a patch-shaped resonator pattern formed of a superconducting material on the dielectric base plate; a top dielectric locally placed on the superconducting resonator pattern at a prescribed position ... | 09/08/2009 |
| 7565188 | Superconducting filter device having disk resonators embedded in depressions of a substrate and method of producing the same A superconducting filter device is disclosed that is able to prevent current concentration and improve electrical surface resistance. The superconducting filter device includes a first dielectric substrate, and a bulk superconducting resonator that is embedded in th... | 07/21/2009 |
| 7558608 | Superconducting device, fabrication method thereof, and filter adjusting method A superconducting device comprises a dielectric substrate, and a plane-figure type resonator pattern made of a superconductive material and formed on a first face of the dielectric substrate. The resonator pattern has a notch at least a portion of which is round. | 07/07/2009 |
| 7532918 | Superconductive filter having U-type microstrip resonators with longer and shorter parallel sides The present invention discloses a U-type superconductive microstrip resonator and a filter corresponding to the same. The U-type superconductive microstrip resonator is an asymmetric U-type configuration formed by folding the superconductive microstrip, its total le... | 05/12/2009 |
| 7457651 | Dual mode filter based on smoothed contour resonators A planar filter has a planar resonator including a conductive region having smoothed contours and supporting a first resonating mode propagating along a first conductive path and a second resonating mode propagating along a second conductive path perpendicular to th... | 11/25/2008 |
| 7437187 | Superconductive filter with capacitive patches providing reduced cross-coupling A resonator of a planar circuit type is provided for receiving a signal from an input end and transmitting a signal to an output end. The resonator includes: (a) a dielectric substrate; (b) a ground plane including a layer of conductive material formed on the bottom... | 10/14/2008 |
| 7431868 | Method of manufacturing a metal substrate for an oxide superconducting wire A metal substrate for an oxide superconducting wire, which comprises a polycrystalline metal substrate with a rolled aggregate structure having a {100} plane which is parallel to the rolled surface and a axis which is parallel to the rolling direction, and an ... | 10/07/2008 |
| 7369020 | Transmission line comprising a plurality of serially connected rotational direction-reversal structures One transmission line includes a first signal conductor which is placed on one surface of a substrate formed from a dielectric or semiconductor and which is formed so as to be curved toward a first rotational direction within the surface, and a second signal conduct... | 05/06/2008 |
| 7352267 | Cylindrically shaped superconductor component and its use as resistive current limiter The present invention is directed to a cylindrically shaped superconductor component particularly useful as resistive current limiter composed of a cylindrical superconductor body, in particular of high temperature superconductor material, provided vertically to its... | 04/01/2008 |
| 7348866 | Compact printed filters with self-connected LC resonators An LC filter structure and method for its fabrication, in which multiple shunt capacitors, multiple shunt inductors and multiple coupling inductors are printed on a metal layer formed on a thin dielectric substrate. The capacitors have first electrodes that are form... | 03/25/2008 |
| 7342469 | Air cavity module for planar type filter operating in millimeter-wave frequency bands Provided is an air cavity module for a planar type filter operating in millimeter-wave frequency bands. The air cavity module includes: the planar type filter operating in the millimeter frequency bands; an air cavity having open side and top surfaces to mount the p... | 03/11/2008 |
| 7332910 | Frequency detection system comprising circuitry for adjusting the resonance frequency of a high temperature superconductor self-resonant coil The use of a circuit to adjust the resonance frequency of a high temperature superconductor self-resonant transmit, receive, or transmit and receive coil results in improved performance. The circuit is useful in a frequency detection system, especially in a nuclear ... | 02/19/2008 |
| 7331023 | Modelling current flows in three-dimensional conductive and dielectric bodies Current flows in a three-dimensional conductive or dielectric body embedded in a substrate of a different material are modelled in terms of surface currents induced in planar surfaces bounding the body and composed of the same material as the substrate, the surfaces... | 02/12/2008 |
| 7324043 | Phase shifters deposited en masse for an electronically scanned antenna A system and method for an electronically scanned antenna is provided in which phase shifters are deposited en masse along with other electronically scanned antenna components on a wafer scale substrate using a thin film process. Alternative wafer scale sizes may be... | 01/29/2008 |
| 7317364 | Varactor tuning for a narrow band filter including an automatically controlled tuning system A method and apparatus for providing dynamic and remote tuning of a cryo-cooled bandpass filter is disclosed. The device includes resonator element and a voltage sensitive element as part of the capacitance in a narrow band filter circuit. A varactor such as a GaAs ... | 01/08/2008 |
| 7311947 | Laser assisted material deposition A method of forming a film on a substrate includes activating a gas precursor to form a material on the substrate by irradiating the gas precursor with electromagnetic energy at a frequency tuned to an absorption frequency of the gas precursor. ... | 12/25/2007 |
| 7310595 | Numerically modeling inductive circuit elements A method of determining electrical parameters of inductive elements includes a novel technique of inverting an impedance matrix representative of said inductive circuit element. The method reduces model simulation time by a factor of 3000. In one embodiment, simulat... | 12/18/2007 |
| 7305261 | Band pass filter having resonators connected by off-set wire couplings A band pass filter which is configured by a microstrip line, or a strip line is provided. The band pass filter has a first half wavelength resonator which resonates at a center frequency of a pass band, a second half wavelength resonator which resonates at the cente... | 12/04/2007 |
| 7305223 | Radio frequency circuit with integrated on-chip radio frequency signal coupler A radio frequency (“RF”) circuit configured in accordance with an embodiment of the invention is fabricated on a substrate using integrated passive device (“IPD”) process technology. The RF circuit includes at least one RF signal line section and an integrat... | 12/04/2007 |
| 7295085 | Process for making high temperature superconductor devices each having a line oriented in a spiral fashion A process for producing high temperature superconductor (HTS) mini-filters or coils in which the high temperature superconductor films are deposited on a layer of CeO2 on a substrate results in higher yields of mini-filters or coils. ... | 11/13/2007 |
| 7283855 | Dielectric waveguide having a 45° face and method of production thereof A dielectric waveguide which comprises a first single crystal magnesium oxide block having a surface of face (001), (100) or (010) and a first copper oxide superconducting film formed on the above-described surface in a c-axis crystal orientation perpendicular to th... | 10/16/2007 |
| 7282963 | Wide-band circuit coupled through a transmission line To provide a broadband circuit from which a desired circuit characteristic is stably obtained over a wide frequency band with a small number of circuit devices and which can be easily designed. In the case of the broadband circuit to which a circuit device is connec... | 10/16/2007 |
| 7283843 | Systems and methods for receiver upgrade Systems and methods for an upgradeable and/or reconfigurable receiver are provided. In general, the present invention is directed to providing systems and methods for designing an electronic communication system having easy and cost effective upgradeable receiver sy... | 10/16/2007 |
| 7276990 | Single-pole multi-throw switch having low parasitic reactance, and an antenna incorporating the same A switch arrangement comprises a plurality of MEMS switches arranged on a substrate about, and close to, a central point, each MEMS switch being disposed on a common imaginary circle centered on the central point. Additionally, and each MEMS switch is preferably spa... | 10/02/2007 |
| 7274019 | Method for detection and imaging over a broad spectral range A method of controlling the coordinate sensitivity in a superconducting microbolometer employs localized light, heating or magnetic field effects to form normal or mixed state regions on a superconducting film and to control the spatial location. Electron beam litho... | 09/25/2007 |
