Patents by Inventor Roger J. Forse
Roger J. Forse has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 7231238Abstract: 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 reduced intermodulation effects of earlier resonators. In one aspect of this invention, a spiral in, spiral out resonator is provided, characterized in that it has an odd number of long runs, at least equal to five long runs, where the long runs are connected by turns, and wherein there are at least two sequential turns of the same handedness, followed by at least two turns of the opposite handedness. In yet another aspect of this invention, it has been discovered that reducing the size of the input and output pads of HTS resonators increases the relative inductance compared to the capacitance. Yet another resonator structure is a spiral snake resonator having a terminal end disposed within the resonator.Type: GrantFiled: December 20, 2004Date of Patent: June 12, 2007Assignee: Superconductor Technologies, Inc.Inventors: Balam Quitzé Andrés Willemsen Cortés, Albert H. Cardona, Neal O. Fenzi, Roger J. Forse
-
Patent number: 7202747Abstract: A self-tuning variable impedance circuit provides improved performance. A variation in the power applied to the variable impedance circuit causes a corresponding change in the impedance of the circuit, resulting in improved performance. For example, the variable impedance circuit may be a matching circuit that “follows” the output power of a power amplifier, thereby increasing the power efficiency of the power amplifier.Type: GrantFiled: August 5, 2004Date of Patent: April 10, 2007Assignee: Agile Materials and Technologies, Inc.Inventors: Roger J Forse, Vicki Chen, Robert A York, David R Chase
-
Patent number: 6895262Abstract: 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 reduced intermodulation effects of earlier resonators. In one aspect of this invention, a spiral in, spiral out resonator is provided, characterized in that it has an odd number of long runs, at least equal to five long runs, where the long runs are connected by turns, and wherein there are at least two sequential turns of the same handedness, followed by at least two turns of the opposite handedness. In yet another aspect of this invention, it has been discovered that reducing the size of the input and output pads of HTS resonators increases the relative inductance compared to the capacitance. Yet another resonator structure is a spiral snake resonator having a terminal end disposed within the resonator.Type: GrantFiled: June 10, 2002Date of Patent: May 17, 2005Assignee: Superconductor Technologies, Inc.Inventors: Balam Quitzé Andrés Willemsen Cortés, Albert H. Cardona, Neal O. Fenzi, Roger J. Forse
-
Patent number: 6624703Abstract: This invention provides a terminal arrangement for an electrical device. The electrical device includes a ground terminal on its outer surface that has a relatively large surface area. The electrical device also includes a plurality of contact terminals that are arranged around the periphery of the outer surface. Preferably, these terminals are generally equally-spaced from each other. Where the outer surface is rectangular, a terminal is normally located in each corner and one or more terminals are located along a side between the corners. The electrical device can be, for instance, a power amplifier. In such an arrangement, the amplifier is used to receive a radio frequency signal at a first side of the outer surface and output an amplified radio frequency signal from a second side of the outer surface. The power used to operate the amplifier is provided by power supply signals that typically enter at outer surface corners.Type: GrantFiled: October 2, 2000Date of Patent: September 23, 2003Assignee: Skyworks Solutions, Inc.Inventors: Shiaw Chang, Kevin Choi, Roger J. Forse
-
Publication number: 20030087765Abstract: 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 reduced intermodulation effects of earlier resonators. In one aspect of this invention, a spiral in, spiral out resonator is provided, characterized in that it has an odd number of long runs, at least equal to five long runs, where the long runs are connected by turns, and wherein there are at least two sequential turns of the same handedness, followed by at least two turns of the opposite handedness. In yet another aspect of this invention, it has been discovered that reducing the size of the input and output pads of HTS resonators increases the relative inductance compared to the capacitance. Yet another resonator structure is a spiral snake resonator having a terminal end disposed within the resonator.Type: ApplicationFiled: June 10, 2002Publication date: May 8, 2003Applicant: SUPERCONDUCTOR TECHNOLOGIES, INC.Inventors: Balam Quitze Andres Willemsen Cortes, Albert H. Cardona, Neal O. Fenzi, Roger J. Forse
-
Patent number: 6424846Abstract: 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 reduced intermodulation effects of earlier resonators. In one aspect of this invention, a spiral in, spiral out resonator is provided, characterized in that it has an odd number of long runs, at least equal to five long runs, where the long runs are connected by turns, and wherein there are at least two sequential turns of the same handedness, followed by at least two turns of the opposite handedness. In yet another aspect of this invention, it has been discovered that reducing the size of the input and output pads of HTS resonators increases the relative inductance compared to the capacitance. Yet another resonator structure is a spiral snake resonator having a terminal end disposed within the resonator.Type: GrantFiled: December 13, 1999Date of Patent: July 23, 2002Assignee: Superconductor Technologies, Inc.Inventors: Balam Quitzé Andrës Willemsen Cortés, Albert H. Cardona, Neal O. Fenzi, Roger J. Forse
-
Patent number: 6185354Abstract: A printed circuit board comprises a metallic layer (12) cooperating with a metallic plate (26) to form a generally polygonal cross-section (48) of an integral waveguide (46) filled with a solid dielectric layer. The metallic layer (12) is on a substrate (10). The metallic layer (12) has a first strip (14) and a second strip (16) spaced apart from the first strip (14). A solid dielectric layer (18) overlies the metallic layer (12). The solid dielectric layer (18) has a first channel (36) exposing the first strip (14), a second channel (38) exposing the second strip (16), and a land (34) disposed between the first channel (36) and the second channel (38). A metallic plate (26) overlies the land (34), extends through the first channel (36) to the first strip (14), and extends through the second channel (38) to the second strip (16).Type: GrantFiled: May 15, 1998Date of Patent: February 6, 2001Assignee: Motorola, Inc.Inventors: Jason Andrew Kronz, Roger J. Forse
-
Patent number: 6026311Abstract: 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 reduced intermodulation effects of earlier resonators. In one aspect of this invention, a spiral in, spiral out resonator is provided, characterized in that it has an odd number of long runs, at least equal to five long runs, where the long runs are connected by turns, and wherein there are at least two sequential turns of the same handedness, followed by at least two turns of the opposite handedness. In yet another aspect of this invention, it has been discovered that reducing the size of the input and output pads of HTS resonators increases the relative inductance compared to the capacitance. Yet another resonator structure is a spiral snake resonator having a terminal end disposed within the resonator.Type: GrantFiled: June 30, 1997Date of Patent: February 15, 2000Assignee: Superconductor Technologies, Inc.Inventors: Balam Quitze Andre Willemsen Cortes, Albert H. Cardona, Neal O. Fenzi, Roger J. Forse
-
Patent number: 5857342Abstract: 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 as the high temperature superconductor circuit, a control circuit capable of activating and deactivating the heating element, and a temperature sensor placed in thermal proximity to the high temperature superconductor circuit. The temperature sensor monitors the operating temperature of the high temperature superconductor circuit, and conveys temperature information to the control circuit. The control circuit activates or deactivates the heating element according to the warming or cooling effect that is necessary in order to maintain the high temperature superconductor circuit within a predetermined temperature range, where the range of temperature fluctuation is within plus or minus 0.1 K of a predetermined temperature.Type: GrantFiled: February 10, 1998Date of Patent: January 12, 1999Assignee: Superconductor Technologies, Inc.Inventors: Stephan M. Rohlfing, Roger J. Forse, Michael J. Scharen, Wallace Kunimoto
-
Patent number: 5818097Abstract: 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 as the high temperature superconductor circuit, a control circuit capable of activating and deactivating the heating element, and a temperature sensor placed in thermal proximity to the high temperature superconductor circuit. The temperature sensor monitors the operating temperature of the high temperature superconductor circuit, and conveys temperature information to the control circuit. The control circuit activates or deactivates the heating element according to the warming or cooling effect that is necessary in order to maintain the high temperature superconductor circuit within a predetermined temperature range, where the range of temperature fluctuation is within plus or minus 0.1 K of a predetermined temperature.Type: GrantFiled: January 5, 1995Date of Patent: October 6, 1998Assignee: Superconductor Technologies, Inc.Inventors: Stephan M. Rohlfing, Roger J. Forse, Michael J. Scharen, Wallace Kunimoto
-
Patent number: 5805037Abstract: A distributed transmission line structure (10) includes a ground plane (26) affixed to a substrate (12). The substrate (12) is formed of a generally nonconductive material. A first metallic strip (14) is affixed to the substrate (12) and is electrically connected to the ground plane (26) through a first through-hole (34). A second metallic strip (16) is affixed to the substrate (12) and is spaced apart from the first metallic strip (14) by a gap (28) and is electrically connected to the ground plane (26) through a second through-hole (38). A dielectric layer (20) overlies the substrate (12), the first metallic strip (14), and the second metallic strip (16). A third metallic strip (18) is affixed to the dielectric layer (20) and is disposed to overlie the gap (28). The third metallic strip (18) has a width less than the gap (28). The impedance of the distributed transmission line structure (10) is substantially constant over a predetermined range of thickness of the dielectric layer (20).Type: GrantFiled: December 23, 1996Date of Patent: September 8, 1998Assignee: Motorola CorporationInventors: Roger J. Forse, William L. Olson
-
Patent number: 5618777Abstract: Lumped element electrical components, such as inductors and capacitors, are formed to include high temperature superconducting materials. In the preferred embodiment, thin film epitaxial high temperature superconductors are patterned to form capacitors and inductors on low loss substrates. Preferably, a ground plane is formed on the back side of the substrate, most preferably being formed of high temperature superconducting material, or other highly conductive materials such as gold or copper. Various advantageous structures include a planar spiral structure, a zig-zag serpentine structure, a single coil structure and a double coil structure. Single layer and multilayer structures are included. Improved narrow bandpass filters and high Q resonator structures are formed.Type: GrantFiled: May 28, 1993Date of Patent: April 8, 1997Assignee: Superconductor Technologies, Inc.Inventors: Gregory L. Hey-Shipton, Roger J. Forse, David L. Skoglund
-
Patent number: 5616539Abstract: Lumped element electrical components, such as inductors and capacitors, are formed to include high temperature superconducting materials. In the preferred embodiment, thin film epitaxial high temperature superconductors are patterned to form capacitors and inductors on low loss substrates. Preferably, a ground plane is formed on the back side of the substrate, most preferably being formed of high temperature superconducting material, or other highly conductive materials such as gold or copper. Various advantageous structures include a planar spiral structure, a zig-zag serpentine structure, a single coil structure and a double coil structure. Single layer and multilayer structures are included. Improved narrow bandpass filters, bandreject filters and high Q resonator structures are formed. Chebyshev bandpass filters are formed from multiple series connected zig-zag filter structures.Type: GrantFiled: August 26, 1994Date of Patent: April 1, 1997Assignee: Superconductor Technologies, Inc.Inventors: Gregory L. Hey-Shipton, Stephan M. Rohlfing, George L. Matthaei, Roger J. Forse