Abstract: A wideband-tunable radio frequency (RF) receiver having a tunable RF bandpass filter (RF BPF) and passive mixer-first receiver (PMF-Rx) is disclosed. The tunable RF BPF and PMF-Rx operate synergistically, exploiting the intrinsic impedance translation property of the PMF-Rx, to suppress out-of-band interferers as well as in-band interferers at the receiver front end and thereby enhance the receiver's signal-to-noise ratio and overall dynamic range. In one embodiment of the invention the tunable RF BPF and PMF-Rx are independently tunable and afford the receiver the ability to reject or suppress interferers that might not otherwise be able to be rejected or suppressed.

Abstract: An integrated circuit/printed circuit board (IC-PCB) assembly comprises a PCB and a heatsink plate. The PCB has a first side including a first patterned conductive layer with one or more thermal pads onto which one or more heat slugs of one or more ICs mount, and a second, opposing side including a second patterned conductive layer with a heatsink plate receiving pad onto which the heatsink plate mounts. The heatsink plate has one or more posts that project from a mounting surface of the heatsink plate, and when the heatsink plate is mounted to the heatsink plate receiving pad, each post extends from the second side of the PCB, through a matching hole in the PCB, and to an associated thermal pad located on the first side of the PCB.

Abstract: A neural network is trained using transfer learning to analyze medical image data, including 2D, 3D, and 4D images and models. Where the target medical image data is associated with a species or problem class for which there is not sufficient labeled data available for training, the system may create enhanced training datasets by selecting labeled data from other species, and/or labeled data from different problem classes. During training and analysis, image data is chunked into portions that are small enough to obfuscate the species source, while being large enough to preserve meaningful context related to the problem class (e.g., the image portion is small enough that it can't be determined whether it is from a human or canine, but abnormal liver tissues are still identifiable). A trained checkpoint may then be used to provide automated analysis and heat mapping of input images via a cloud platform or other application.

Abstract: A universal transmit-receive (UTR) module for phased array systems comprises an antenna element shared for both transmitting and receiving; a transmit path that includes a transmit-path phase shifter, a driver, a switch-mode power amplifier (SMPA) that is configured to be driven by the driver, and a dynamic power supply (DPS) that generates and supplies a DPS voltage to the power supply port of the SMPA; and a receive path that includes a TX/RX switch that determines whether the receive path is electrically connected to or electrically isolated from the antenna element, a bandpass filter (BPF) that aligns with the intended receive frequency and serves to suppress reflected transmit signals and reverse signals, an adjustable-gain low-noise amplifier (LNA), and a receive-path phase shifter. The UTR module is specially designed for operation in phased array systems.

Abstract: A neural network is trained using transfer learning to analyze medical image data, including 2D, 3D, and 4D images and models. Where the target medical image data is associated with a species or problem class for which there is not sufficient labeled data available for training, the system may create enhanced training datasets by selecting labeled data from other species, and/or labeled data from different problem classes. During training and analysis, image data is chunked into portions that are small enough to obfuscate the species source, while being large enough to preserve meaningful context related to the problem class (e.g., the image portion is small enough that it can't be determined whether it is from a human or canine, but abnormal liver tissues are still identifiable). A trained checkpoint may then be used to provide automated analysis and heat mapping of input images via a cloud platform or other application.

Abstract: A universal transmit-receive (UTR) module for phased array systems comprises an antenna element shared for both transmitting and receiving; a transmit path that includes a transmit-path phase shifter, a driver, a switch-mode power amplifier (SMPA) that is configured to be driven by the driver, and a dynamic power supply (DPS) that generates and supplies a DPS voltage to the power supply port of the SMPA; and a receive path that includes a TX/RX switch that determines whether the receive path is electrically connected to or electrically isolated from the antenna element, a bandpass filter (BPF) that aligns with the intended receive frequency and serves to suppress reflected transmit signals and reverse signals, an adjustable-gain low-noise amplifier (LNA), and a receive-path phase shifter. The UTR module is specially designed for operation in phased array systems.

Abstract: A universal transmit-receive (UTR) module for phased array systems comprises an antenna element shared for both transmitting and receiving; a transmit path that includes a transmit-path phase shifter, a driver, a switch-mode power amplifier (SMPA) that is configured to be driven by the driver, and a dynamic power supply (DPS) that generates and supplies a DPS voltage to the power supply port of the SMPA; and a receive path that includes a TX/RX switch that determines whether the receive path is electrically connected to or electrically isolated from the antenna element, a bandpass filter (BPF) that aligns with the intended receive frequency and serves to suppress reflected transmit signals and reverse signals, an adjustable-gain low-noise amplifier (LNA), and a receive-path phase shifter. The UTR module is specially designed for operation in phased array systems.

Abstract: An integrated circuit printed circuit board (IC-PCB) assembly comprises a PCB and a heatsink plate. The PCB has a first side including a first patterned conductive layer with one or more thermal pads onto which one or more heat slugs of one or more ICs mount, and a second, opposing side including a second patterned conductive layer with a heatsink plate receiving pad onto which the heatsink plate mounts. The heatsink plate has one or more posts that project from a mounting surface of the heatsink plate, and when the heatsink plate is mounted to the heatsink plate receiving pad, each post extends from the second side of the PCB, through a matching hole in the PCB, and to an associated thermal pad located on the first side of the PCB.

Abstract: A neural network is trained using transfer learning to analyze medical image data, including 2D, 3D, and 4D images and models. Where the target medical image data is associated with a species or problem class for which there is not sufficient labeled data available for training, the system may create enhanced training datasets by selecting labeled data from other species, and/or labeled data from different problem classes. During training and analysis, image data is chunked into portions that are small enough to obfuscate the species source, while being large enough to preserve meaningful context related to the problem class (e.g., the image portion is small enough that it can't be determined whether it is from a human or canine, but abnormal liver tissues are still identifiable). A trained checkpoint may then be used to provide automated analysis and heat mapping of input images via a cloud platform or other application.

Abstract: An integrated circuit/printed circuit board (IC-PCB) assembly comprises a PCB and a heatsink plate. The PCB has a first side including a first patterned conductive layer with one or more thermal pads onto which one or more heat slugs of one or more ICs mount, and a second, opposing side including a second patterned conductive layer with a heatsink plate receiving pad onto which the heatsink plate mounts. The heatsink plate has one or more posts that project from a mounting surface of the heatsink plate, and when the heatsink plate is mounted to the heatsink plate receiving pad, each post extends from the second side of the PCB, through a matching hole in the PCB, and to an associated thermal pad located on the first side of the PCB.

Abstract: An integrated circuit/printed circuit board (IC-PCB) assembly comprises a PCB and a heatsink plate. The PCB has a first side including a first patterned conductive layer with one or more thermal pads onto which one or more heat slugs of one or more ICs mount, and a second, opposing side including a second patterned conductive layer with a heatsink plate receiving pad onto which the heatsink plate mounts. The heatsink plate has one or more posts that project from a mounting surface of the heatsink plate, and when the heatsink plate is mounted to the heatsink plate receiving pad, each post extends from the second side of the PCB, through a matching hole in the PCB, and to an associated thermal pad located on the first side of the PCB.

Abstract: A universal transmit-receive (UTR) module for phased array systems comprises an antenna element shared for both transmitting and receiving; a transmit path that includes a transmit-path phase shifter, a driver, a switch-mode power amplifier (SMPA) that is configured to be driven by the driver, and a dynamic power supply (DPS) that generates and supplies a DPS voltage to the power supply port of the SMPA; and a receive path that includes a TX/RX switch that determines whether the receive path is electrically connected to or electrically isolated from the antenna element, a bandpass filter (BPF) that aligns with the intended receive frequency and serves to suppress reflected transmit signals and reverse signals, an adjustable-gain low-noise amplifier (LNA), and a receive-path phase shifter. The UTR module is specially designed for operation in phased array systems.

Abstract: A universal transmit-receive (UTR) module for phased array systems comprises an antenna element shared for both transmitting and receiving; a transmit path that includes a transmit-path phase shifter, a driver, a switch-mode power amplifier (SMPA) that is configured to be driven by the driver, and a dynamic power supply (DPS) that generates and supplies a DPS voltage to the power supply port of the SMPA; and a receive path that includes a TX/RX switch that determines whether the receive path is electrically connected to or electrically isolated from the antenna element, a bandpass filter (BPF) that aligns with the intended receive frequency and serves to suppress reflected transmit signals and reverse signals, an adjustable-gain low-noise amplifier (LNA), and a receive-path phase shifter. The UTR module is specially designed for operation in phased array systems.

Abstract: A universal transmit-receive (UTR) module for phased array systems comprises an antenna element shared for both transmitting and receiving; a transmit path that includes a transmit-path phase shifter, a driver, a switch-mode power amplifier (SMPA) that is configured to be driven by the driver, and a dynamic power supply (DPS) that generates and supplies a DPS voltage to the power supply port of the SMPA; and a receive path that includes a TX/RX switch that determines whether the receive path is electrically connected to or electrically isolated from the antenna element, a bandpass filter (BPF) that aligns with the intended receive frequency and serves to suppress reflected transmit signals and reverse signals, an adjustable-gain low-noise amplifier (LNA), and a receive-path phase shifter. The UTR module is specially designed for operation in phased array systems.

Abstract: Radio frequency (RF) transmitters and methods of their operation are disclosed. An exemplary RF transmitter includes an RF power amplifier (RFPA), a dynamic power supply (DPS), and a baseband processing unit. The baseband processing unit generates an amplitude modulation (AM) signal that the DPS follows to generate a DPS voltage VDD(t). The DPS voltage VDD(t) serves as a power supply for an output stage of the RFPA. Under most operating conditions the output stage is configured to operate in a compressed mode (C-mode), but is reconfigured to operate in a product mode (or “P-mode) during times low-magnitude events in the AM signal are conveyed to the DPS and become present in the DPS voltage VDD(t) produced by the DPS. Operating the output stage in P-mode overcomes the inability of C-mode operation to reproduce low-magnitude events contained in the AM signal at the RF output of the RFPA.

Abstract: Radio frequency (RF) transmitters and methods of their operation are disclosed. An exemplary RF transmitter includes an RF power amplifier (RFPA), a dynamic power supply (DPS), and a baseband processing unit. The baseband processing unit generates an amplitude modulation (AM) signal that the DPS follows to generate a DPS voltage VDD(t). The DPS voltage VDD(t) serves as a power supply for an output stage of the RFPA. Under most operating conditions the output stage is configured to operate in a compressed mode (C-mode), but is reconfigured to operate in a product mode (or “P-mode) during times low-magnitude events in the AM signal are conveyed to the DPS and become present in the DPS voltage VDD(t) produced by the DPS. Operating the output stage in P-mode overcomes the inability of C-mode operation to reproduce low-magnitude events contained in the AM signal at the RF output of the RFPA.

Abstract: A shaped charge casing 1 designed to be nested to reduce overall volume, which benefits storage or carriage. A lid portion 5 is connected at 8 to a body portion 9 by means of a screw thread. A shaped charge liner 12 can be positioned onto lip 11. The lid portion 5 and body portion 9 can be separated to allow filling or unpacking of explosive material.

Abstract: A shaped charge casing 1 designed to be nested to reduce overall volume, which benefits storage or carriage. A lid portion 5 is connected at 8 to a body portion 9 by means of a screw thread. A shaped charge liner 12 can be positioned onto lip 11. The lid portion 5 and body portion 9 can be separated to allow filling or unpacking of explosive material.

Abstract: An oscillator includes an amplifier having an input and an output, a feedback network connected between the input of the amplifier and the output of the amplifier, the feedback network being configured to provide suitable positive feedback from the output of the amplifier to the input of the amplifier to initiate and sustain an oscillating condition, and a tuning circuit connected to the input of the amplifier, wherein the tuning circuit is continuously variable and consists of solid state electrical components with no mechanically adjustable devices including a pair of diodes connected to each other at their respective cathodes with a control voltage connected at the junction of the diodes.

Abstract: A discharge lamp bulb includes a light transmissive envelope and at least one conductive fiber disposed on a wall of the envelope, where the fiber has a thickness of less than 100 microns. The lamp may be either electrodeless or may include internal electrodes. Suitable materials for the fiber(s) include but are not limited to carbon, silicon carbide, aluminum, tantalum, molybdenum, platinum, and tungsten. Silicon carbide whiskers and platinum coated silicon carbide fibers may also be used. The fiber(s) may be aligned with the electrical field, at least during starting. The lamp preferably further includes a protective material covering the fiber(s). For example the protective material may be a sol gel deposited silica coating. Noble gases inside the bulb at pressures in excess of 300 Torr can be reliably ignited at applied electric field strengths of less than 4×105 V/m. Over 2000 Torr xenon, krypton, and argon respectively achieve breakdown with an applied field of less than 3×105 V/m.