| Patent Number |
Title Of Patent |
Date Issued |
| RE36295 |
Apparatus for growing metal oxides using organometallic vapor phase epitaxy |
September 14, 1999 |
| The methods and apparatus disclosed enable controlled growth of multicomponent metal oxide thin films, including high temperature superconducting (HTS) thin films, which are uniform and reproducible. The method and apparatus enable a controlled flow and pressure of a gaseous phase of |
| 7439208 |
Growth of in-situ thin films by reactive evaporation |
October 21, 2008 |
| A method of forming MgB.sub.2 films in-situ on a substrate includes the steps of (a) depositing boron onto a surface of the substrate in a deposition zone; (b) moving the substrate into a reaction zone containing pressurized, gaseous magnesium; (c) moving the substrate back into the |
| 7395091 |
Systems and methods for receiver upgrade |
July 1, 2008 |
| 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 systems and componen |
| 7283843 |
Systems and methods for receiver upgrade |
October 16, 2007 |
| 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 systems and componen |
| 7231238 |
High temperature spiral snake superconducting resonator having wider runs with higher current de |
June 12, 2007 |
| Novel structures and methods for forming useful high temperature superconducting devices, most particularly resonators, are provided. Structures resulting in reduced peak current densities relative to known structures achieve numerous desirable benefits, especially including the redu |
| 7190165 |
Tunable superconducting resonator and methods of tuning thereof |
March 13, 2007 |
| A method of tuning a high temperature superconductor (HTS) resonator includes the steps of providing a HTS inductor and a HTS capacitor, the HTS capacitor being electrically connected to the HTS inductor. A tuning body is provided adjacent to the HTS inductor and the HTS capacitor. The |
| 7137259 |
Cryocooler housing assembly apparatus and method |
November 21, 2006 |
| A cryocooler cold end assembly is disclosed. The assembly includes a unitary external, outer housing. By constructing the housing from a single unitary metal shell, part count is reduced from prior art assemblies. Additionally, all brazing requirements previously necessary to secure |
| 6933748 |
Filter network combining non-superconducting and superconducting filters |
August 23, 2005 |
| A filter network designed for providing high frequency selectivity with a high degree of reliability and availability. The filter network comprises a superconducting filter and a non-superconducting filter, or a combination thereof to form multiplexers. A receive side of the non-supe |
| 6933165 |
Method of making an electrostatic actuator |
August 23, 2005 |
| A method of fabricating an electrostatic actuator with an intrinsic stress gradient is provided. An electrode is formed on a substrate and a support layer is formed over the electrode. A metal layer is deposited onto the support layer via a deposition process. Deposition process conditio |
| 6924966 |
Spring loaded bi-stable MEMS switch |
August 2, 2005 |
| A MEMS switch assembly comprising a substrate and a resilient switching member is provided. The resilient switching member comprises a transverse torsion member having a flexible portion, and a leaf spring and cantilever that extend from the flexible portion of the torsion member. The sw |
| 6898450 |
High temperature superconducting tunable filter with an adjustable capacitance gap |
May 24, 2005 |
| 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 to the fixed substrate and the movable substrate, a floating plate comprising a high-tem |
| 6895262 |
High temperature superconducting spiral snake structures and methods for high Q, reduced intermo |
May 17, 2005 |
| Novel structures and methods for forming useful high temperature superconducting devices, most particularly resonators, are provided. Structures resulting in reduced peak current densities relative to known structures achieve numerous desirable benefits, especially including the redu |
| 6880335 |
Stirling cycle cryocooler with improved magnet ring assembly and gas bearings |
April 19, 2005 |
| A piston assembly for use in a motor comprises a cylinder having a bore, an electrically conductive piston reciprocally disposed within the cylinder bore, a gas cavity formed within the piston, and one or more gas bearings associated with the piston, each of the one or more gas bearings |
| 6876877 |
High temperature superconductor tunable filter having a movable substrate controlled by a magnet |
April 5, 2005 |
| 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 comprises a magnetic driver on an upper surface of the fixed substrate that is substantially ove |
| 6876046 |
Stiction alleviation using passivation layer patterning |
April 5, 2005 |
| The present invention alleviates stiction between a suspended beam or microstructure and an underlying substrate by providing a patterned passivation layer on the substrate underneath the beam. The passivation layer is patterned to provide a substrate surface that differs substantial |
| 6795697 |
RF receiver switches |
September 21, 2004 |
| RF switches and methods of use are provided. In one embodiment, a RF switch includes first and second switch assemblies, each comprising an elongate member and a magnetic housing on an end of the member. The magnet is disposed between contact pads for first and second circuits, and an |
| 6788175 |
Anchors for micro-electro-mechanical systems (MEMS) devices |
September 7, 2004 |
| The present invention provides an anchor system for securing a MEMS device to a substrate comprising multiple anchors. A MEMS structure, built in accordance with the one embodiment of the invention, comprises a flexible beam suspended over a substrate and a base attached to each end of t |
| 6772498 |
Method of manufacturing dewars |
August 10, 2004 |
| An improved dewar design that accelerates the manufacturing process of a dewar. In a preferred embodiment, the dewar includes an evacuation port that may be larger in size by a factor of ten over the size of evacuation ports of conventional dewars. The oversized evacuation port, however, |
| 6754510 |
MEMS-based bypass system for use with a HTS RF receiver |
June 22, 2004 |
| A HTS-based RF receiver includes a cryocooler and a cryogenic enclosure in thermal communication with the cryocooler. The cryogenic enclosure contains a HTS filter and a LNA therein. A first MEMS bypass switch is positioned between a RF input and the HTS filter, the first MEMS bypass |
| 6727702 |
Tunable superconducting resonator and methods of tuning thereof |
April 27, 2004 |
| A method of tuning a high temperature superconductor (HTS) resonator includes the steps of providing a HTS inductor and a HTS capacitor, the HTS capacitor being electrically connected to the HTS inductor. A tuning body is provided adjacent to the HTS inductor and the HTS capacitor. The |
| 6700459 |
Dual-mode bandpass filter with direct capacitive couplings and far-field suppression structures |
March 2, 2004 |
| 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 of the region. The symmetrical configurations may be formed from folded sections of the |
| 6694730 |
Stirling cycle cryocooler with improved magnet ring assembly and gas bearings |
February 24, 2004 |
| A magnet ring assembly for use with a piston assembly includes a cylindrical magnet holder having an inner surface, an annular ledge formed around the inner surface of the cylindrical magnet holder, and a swaged axial edge opposite the annular ledge, and a plurality of arcuate magnet |
| 6688113 |
Synthetic felt regenerator material for stirling cycle cryocoolers |
February 10, 2004 |
| A regenerator material for use inside a displacer of a Stirling cycle cryocooler includes a plurality of circular disks formed from a synthetic felt that is preferably polyester. The plurality of disks have an outer diameter that is greater than the inner diameter of the displacer. The |
| 6686811 |
Filter network combining non-superconducting and superconducting filters |
February 3, 2004 |
| A filter network designed for providing high frequency selectivity with a high degree of reliability and availability. The filter network comprises a superconducting filter and a non-superconducting filter, or a combination thereof to form multiplexers. A receive side of the non-supe |
| 6662029 |
High temperature superconducting tunable filter with an adjustable capacitance gap |
December 9, 2003 |
| 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 to the fixed substrate and the movable substrate, a floating plate comprising a high-tem |
| 6633208 |
Filter with improved intermodulation distortion characteristics and methods of making the improv |
October 14, 2003 |
| Multi-stage electric filters with improved intermodulation-distortion characteristics and a method for designing such electric filters is provided. In general, the invention may include a multi-resonator electric filter in which one or more of the resonators have been intentionally d |
| 6625004 |
Electrostatic actuators with intrinsic stress gradient |
September 23, 2003 |
| An electrostatic actuator with an intrinsic stress gradient is provided. The electrostatic actuator comprises an electrode and an electrostatically actuated beam fixed at one end relative to the electrode. The electrostatically actuated beam further includes a metal layer made substa |
| 6590471 |
Push on connector for cryocable and mating weldable hermetic feedthrough |
July 8, 2003 |
| 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. In the preferred embodiment, the cryocable 10 comprises a conductor 11 disposed adjacent an |
| 6568194 |
Evacuation port and closure for dewars |
May 27, 2003 |
| An improved dewar design that accelerates the manufacturing process of a dewar. In a preferred embodiment, the dewar includes an evacuation port that may be larger in size by a factor of ten over the size of evacuation ports of conventional dewars. The oversized evacuation port, however, |
| 6538445 |
Superconducting control elements for RF antennas |
March 25, 2003 |
| Control elements for RF antennas including high temperature superconducting capacitors, alone or in combination with other elements, including high temperature superconducting films, structures, and applications are formed. In one embodiment a high temperature superconducting capacitor i |
| 6516208 |
High temperature superconductor tunable filter |
February 4, 2003 |
| 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 comprises a magnetic driver on an upper surface of the fixed substrate that is substantially ove |
| 6499304 |
Cryocooler for HTSC filter systems |
December 31, 2002 |
| An improved HTSC filter system design. An improved HTSC filter system comprises a cryocooler and dewar assembly, a heat dissipation assembly and at least one heat pipe providing a thermal coupling between said heat dissipation assembly and said cryocooler and dewar assembly. In a pre |
| 6446444 |
Digital signal process control of stirling cycle cryogenic cooler drive and high temperature sup |
September 10, 2002 |
| Systems and methods for regulating, for example, the temperature of high temperature superconducting (HTSC) thin film filters used in connection with a Stirling cycle cryocooler. The system employs a digital signal processor-based control system. The system includes a cryocooler drive |
| 6427450 |
Cryocooler motor with split return iron |
August 6, 2002 |
| A cryocooler having an improved linear motor assembly. The cryocooler comprises a displacer unit, heat exchanger unit and compressor and linear motor assembly. The compressor and linear motor assembly includes a linear motor having both a stationary internal return iron element and a mov |
| 6424846 |
Spiral snake high temperature superconducting resonator for high Q, reduced intermodulation |
July 23, 2002 |
| Novel structures and methods for forming useful high temperature superconducting devices, most particularly resonators, are provided. Structures resulting in reduced peak current densities relative to known structures achieve numerous desirable benefits, especially including the redu |
| 6347237 |
High temperature superconductor tunable filter |
February 12, 2002 |
| 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 to the fixed substrate and the movable substrate, a floating plate comprising a high-tem |
| 6335622 |
Superconducting control elements for RF antennas |
January 1, 2002 |
| Control elements for RF antennas including high temperature superconducting capacitors, alone or in combination with other elements, including high temperature superconducting films, structures, and applications are formed. In one embodiment a high temperature superconducting capacitor i |
| 6327862 |
Stirling cycle cryocooler with optimized cold end design |
December 11, 2001 |
| A Stirling cycle cryocooler is disclosed that includes a displacer unit having a cold end and a hot end. The displacer unit includes a cold cylinder housing and a displacer liner disposed on the inner surface of the housing. A displacer assembly lies within the displacer liner and is |
| 6311498 |
Tower mountable cyrocooler and HTSC filter system |
November 6, 2001 |
| An improved HTSC filter system design. An improved HTSC filter system comprises a cryocooler and dewar assembly, a heat dissipation assembly and at least one heat pipe providing a thermal coupling between said heat dissipation assembly and said cryocooler and dewar assembly. In a pre |
| 6256999 |
Temperature control of high temperature superconducting thin film filter subsystems |
July 10, 2001 |
| Systems and methods for regulating, for example, the temperature of high temperature superconducting (HTSC) thin film filters. A multi-stage temperature controller comprises a first loop and a second loop. The first loop is used to regulate the cold finger temperature of, for example, a |
| 6154103 |
Push on connector for cryocable and mating weldable hermetic feedthrough |
November 28, 2000 |
| 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. In the preferred embodiment, the cryocable 10 comprises a conductor 11 disposed adjacent an |
| 6141971 |
Cryocooler motor with split return iron |
November 7, 2000 |
| A cryocooler having an improved linear motor assembly. The cryocooler comprises a displacer unit, heat exchanger unit and compressor and linear motor assembly. The compressor and linear motor assembly includes a linear motor having both a stationary internal return iron element and a mov |
| 6130189 |
Microwave hairpin-comb filters for narrow-band applications |
October 10, 2000 |
| Microwave hairpin-comb filters utilize a plurality of hairpin (i.e., folded) half-wavelength microstrip or stripline resonators arranged side-by-side and all with the same orientation. The coupling regions between resonators extend parallel to the sides of the resonators for substant |
| 6112526 |
Tower mountable cryocooler and HTSC filter system |
September 5, 2000 |
| An improved HTSC filter system design. An improved HTSC filter system comprises a cryocooler and dewar assembly, a heat dissipation assembly and at least one heat pipe providing a thermal coupling between said heat dissipation assembly and said cryocooler and dewar assembly. In a pre |
| 6098409 |
Temperature control of high temperature superconducting thin film filter subsystems |
August 8, 2000 |
| Systems and methods for regulating, for example, the temperature of high temperature superconducting (HTSC) thin film filters. A multi-stage temperature controller comprises a first loop and a second loop. The first loop is used to regulate the cold finger temperature of, for example, a |
| 6083884 |
A-axis high temperature superconducting films with preferential in-plane alignment |
July 4, 2000 |
| An a-axis high temperature superconducting film having preferential in-plane orientation is formed. In the preferred embodiment, an a-axis film has substantial amounts of superconductor oriented with its c-axis in a unified direction. YBCO on neodymium gallate (110) plane has resulted in |
| 6026311 |
High temperature superconducting structures and methods for high Q, reduced intermodulation reso |
February 15, 2000 |
| Novel structures and methods for forming useful high temperature superconducting devices, most particularly resonators, are provided. Structures resulting in reduced peak current densities relative to known structures achieve numerous desirable benefits, especially including the redu |
| 5906965 |
Thin film superconductor-insulator-superconductor multi-layer films and method for obtaining the |
May 25, 1999 |
| A high temperature superconductor (HTS) tri-layer structure and a method for providing the same are described. Preferable two dimensional growth for all layers is provided resulting in smooth surfaces and highly crystalline layers. Full oxygenation of HTS under-layer(s) is provided d |
| 5888942 |
Tunable microwave hairpin-comb superconductive filters for narrow-band applications |
March 30, 1999 |
| Microwave hairpin-comb filters utilize a plurality of hairpin (i.e., folded) half-wavelength microstrip or stripline resonators arranged side-by-side and all with the same orientation. The coupling regions between resonators extend parallel to the sides of the resonators for substant |
| 5857342 |
Temperature controlling cryogenic package system |
January 12, 1999 |
| A temperature controlled cryogenic package system for efficiently and precisely monitoring and controlling the operating temperature of a high temperature superconductor circuit placed on a substrate. The cryogenic package system comprises a heating element formed on the same substrate a |
