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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...
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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...
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7567145 |
Superconducting tunable filter
A superconducting tunable filter is disclosed that has a center frequency and a bandwidth able to be adjusted separately. The superconducting tunable filter includes a superconducting resonator...
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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...
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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...
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7553092 |
Optical module and optical module package
Provided is an optical module used in a communication system employing a radio over fiber (ROF) technology delivering a radio frequency (RF) signal through an optical fiber. The optical module...
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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...
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7471169 |
Generation of electric oscillations by continuous, supercooled superconductors under a voltage
The essence of the invention is the use of supercooled superconductors for generation of high-frequency electric oscillations. The superconductor is supercooled, i.e. in the normal phase at a...
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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...
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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...
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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...
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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...
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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...
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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 CeO 2 on a substrate results in...
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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...
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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...
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7231238 |
High temperature spiral snake superconducting resonator having wider runs with higher current density
Novel structures and methods for forming useful high temperature superconducting devices, most particularly resonators, are provided. Structures resulting in reduced peak current densities relative...
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7224242 |
Microwave filter assembly
A filter element ( 28 ) having planar ( 48 ) or cavity ( 30 ) geometry having applied thereto a coating ( 38, 39, 50, 53 ) of temperature super conducting (HTS) material in which the filter element...
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7221238 |
Superconducting filter device
A compact superconducting filter device can easily change a bandwidth and a center frequency without changing a pattern or shape of the filter. A filter pattern is formed on a substrate made of a...
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7218184 |
Superconducting filter
A superconducting filter including input/output feeders formed on one surface of a dielectric substrate, resonator patterns formed on one surface of the dielectric substrate, and a dielectric plate...
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7183874 |
Casing contained filter
A filter is provided which maintains a low insertion loss characteristic of a filter contained in a casing with a very simple construction that the internal wall of the casing is formed by a...
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7181259 |
Resonator having folded transmission line segments and filter comprising the same
A resonator and filter including the resonator is disclosed. The resonator ( 100 ) includes an open conductive loop ( 100 ) with folded transmission line segments ( 124, 134 ) extending from the...
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7174197 |
Superconductive filter module, superconductive filter assembly and heat insulating type coaxial cable
The present invention relates to superconductive filter technology. According to the arrangement of the superconductive filter ( 1 ), a columnar resonating member ( 23 ) having a superconductive...
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7117025 |
Varactor tuning for a narrow band filter
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...
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7071797 |
Method and apparatus for minimizing intermodulation with an asymmetric resonator
A method and apparatus to control intermodulation in a circuit for filtering over the air signals by creating an asymmetric resonator is disclosed. By creating the asymmetric resonator, the...
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7069064 |
Tunable ferroelectric resonator arrangement
The present invention relates to a tunable resonating arrangement comprising a resonator apparatus ( 10 ), input/output coupling ( 4 ) means for coupling electromagnetic energy into/out of the...
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7058436 |
Superconducting filter apparatus and wireless receiving amplifier having an abnormality discriminating circuit
A superconducting filter apparatus having a refrigerator for cooling the superconducting filter to cryogenic temperatures, a pilot signal generator for generating a pilot signal that is outside the...
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6980841 |
Filter device having spiral resonators connected by a linear section
A resonator is formed by forming a microstrip line having an electrical length corresponding to a λ/2 wavelength on a dielectric substrate, forming both side portions of the microstrip line from...
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6972636 |
Method of manufacturing a high-frequency switch, a high-frequency switch and an electronic apparatus
A BPF 20 , which is a filter circuit, is formed by arranging a plurality of wiring patterns 21 a, 21 b and 22 a to 22 c on a substrate 10 . Also, a freely movable impedance control rod 26...
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6968210 |
Receiving apparatus
The present invention relates to an economical and highly reliable receiving apparatus for receiving radio signals transmitted from a mobile communication terminal within radio zone. The receiving...
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6961597 |
Strips for imparting low nonlinearity to high temperature superconductor microwave filters
Based on its superconductive properties relating to “nonlineanty,” a conventional HTS strip is divisible into three “domains,” namely, a medial domain and two lateral domains. The...
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6937117 |
High-frequency device
A high-frequency device comprises a dielectric substrate, a filter element which has a plurality of resonating elements made of a first superconductor film on the dielectric substrate, a dielectric...
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6934569 |
Elliptical resonators with radial current mode and radio frequency filter formed therefrom
A resonator for use in a radio frequency filter including a substantially planar resonant portion that is substantially elliptical in plan. The resonant portion is mounted on a dielectric...
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6903632 |
Band pass filter
A band pass filter configured by a planar structure circuit, includes resonators of distribution constant circuit type, transmission line paths coupling the resonators and excitation lines arranged...
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6898450 |
High temperature superconducting tunable filter with an adjustable capacitance gap
A tunable filter having a fixed substrate, a first and second plate comprising a high-temperature superconductor material on the fixed substrate, a movable substrate, a mechanical driver attached...
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6895262 |
High temperature superconducting spiral snake structures and methods for high Q, reduced intermodulation structures
Novel structures and methods for forming useful high temperature superconducting devices, most particularly resonators, are provided. Structures resulting in reduced peak current densities relative...
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6894584 |
Thin film resonators
A thin film resonator which combines a microstrip resonator structure and a coplanar resonator structure to form an integrated resonator structure. The resonant frequency of this resonator...
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6889068 |
Heat cutoff signal transmission unit and superconducting signal transmission apparatus
A superconducting signal transmission apparatus provided with a vacuum container 11 , a superconducting electronic device 12 provided in the vacuum container 11 , an input side transmission...
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6876877 |
High temperature superconductor tunable filter having a movable substrate controlled by a magnetic actuator
A circuit is provided wherein the electronic properties of the circuit are varied by a magnetic actuator. The circuit includes a fixed substrate and a movable substrate. The magnetic actuator...
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6823201 |
Superconducting microstrip filter having current density reduction parts
A superconducting microstrip filter capable of achieving an improvement of power resistance without enlarging the overall size and while maintaining steep cut characteristics. This filter has a...
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6792299 |
Device approximating a shunt capacitor for strip-line-type circuits
A closed conductive loop for use in planar circuits to realize shunt capacitors instead of conductive patches is disclosed. The closed conductive loop may be formed on a planar substrate or extend...
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6791430 |
Resonator tuning assembly and method
A device and method for tuning a planar filter through a wide range of center frequencies are disclosed. The tuning assembly includes a superconductive tuning tip and an actuator configured and...
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6751489 |
High temperature superconductor mini-filters and mini-multiplexers with self-resonant spiral resonators
High temperature superconductor mini-filters and mini-multiplexers utilize self-resonant spiral resonators and have very small size and very low cross-talk between adjacent channels.
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6731960 |
Dual operation mode all temperature filter using superconducting resonators with superconductive/non-superconductive mixture
A dual operation mode all temperature filter is provided. The dual operation mode filter is provided with a housing defining at least two cavities, an input port and an output port. It is also...
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6700459 |
Dual-mode bandpass filter with direct capacitive couplings and far-field suppression structures
A dual-mode resonator comprises a dielectric substrate having a region divided into four quadrants, and a ring resonator forming quadrangularly symmetrical configurations within the four quadrants...
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6678540 |
Transmission line single flux quantum chip-to -chip communication with flip-chip bump transitions
A superconductor on-chip microstrip line ( 2, 4 ) to off-chip microstrip line ( 7 ) transition of low characteristic impedance ( 15, 20, 22 ) is realized that obtains a bandwidth of 200 GHz for MCM...
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6653917 |
High-temperature superconductor low-pass filter for suppressing broadband harmonics
Disclosed is a high-temperature superconductor low-pass filter for removing broadband harmonics in a wireless communication system. The high-temperature superconductor low-pass filter includes a...
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6650914 |
High frequency super conductive filter
A high frequency filter having steep skirt characteristics using a sapphire R-plane substrate. The filter comprises a substrate having first and second faces. The first face is a sapphire R-plane....
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6590471 |
Push on connector for cryocable and mating weldable hermetic feedthrough
An electrical interconnect provides a path between cryogenic or cryocooled circuitry and ambient temperatures. As a system, a cryocable 10 is combined with a trough-line contact or transition 20...
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6584332 |
Electronic equipment
An electronic equipment includes one or more electronic devices, a cold stage, and a cold insulation member. The one or more electronic devices perform a predetermined operation within a...
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