Hypres Inc. | Date: 2015-04-27
A processor, comprising a first data input configured to receive a stream of samples of a first signal having a spectral space, the stream having a data rate of at least 4 GHz; a second data input configured to receive a stream of samples of a second signal; a multitap correlator, configured to receive the first stream of samples and the second stream of samples, and producing at least one correlation output for each respective sequential sample of the first signal received; and a programmable control configured to alter a relationship of the stream of samples of the first signal and the stream of samples of the second signal, to thereby select, under program control, an alterable correlation output.
Raytheon Co. and Hypres Inc. | Date: 2015-07-29
A magnetic random access memory (MRAM) array including: a plurality of MRAM cells arranged in an array configuration, each comprising a first type nTron and a magnetic memory element; a wordline select circuit comprising of a second type nTron to drive a plurality of parallel wordlines; and a plurality of bitline select circuits, each comprising of said second type nTron for writing to and reading from a column of memory cells in the array and each capable of selecting a single MRAM cell for a memory read or write operation, wherein the second nTron has a higher current drive than the first nTron.
Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase I | Award Amount: 79.99K | Year: 2015
The ability to directly digitize high frequency analog radio frequency (RF) signals greatly simplifies multi-band microwave receivers. Superconductor analog-to-digital converters (ADC) offer discriminating advantages in both bandwidth and fidelity due to very high sampling rates and quantum-accurate digitization based on counting of magnetic flux quanta. Multiple digital-RF receiver systems incorporating superconductor ADCs have been in operation for over two years in field-ready configurations at Government laboratories, and have demonstrated direct digitization of RF signals above 20 GHz. We propose to increase sampling rates from 40 GHz in current ADCs proven in these delivered systems to 100 GHz and 200 GHz. These ADCs will be designed together with proportionately faster on-chip digital circuits and high-quality analog circuits that will allow us to not only design, but to build, and demonstrate hardware prototypes in Phase II. During Phase I, we will build circuit models and use state-of-the-art simulation tools to develop a roadmap of ADC designs with increasing speed and complexity to meet the needs of spaceborne microwave radiometry and other RF applications.
Agency: Department of Defense | Branch: Air Force | Program: STTR | Phase: Phase II | Award Amount: 749.93K | Year: 2014
ABSTRACT: In this STTR phase II, HYPRES and University of California San Diego team will demonstrate a small size, weight and power, wideband (2 MHz to 2 GHz) receiver prototype based on SQUID array technology. Our SQUID array designs are based on highly linear bi-SQUID and SQUID cells arranged into a 2-dimensional (2D) array. The 2D arrays are fabricated using high-temperature superconductor Ion Damaged Josephson junction fabrication process suitable for integration of large number of SQUID devices on a single chip. This affords the use of small size robust 70 K cryocoolers and will make overall system suitable for airborne deployment. The wideband receiver prototype comprises a SQUID 2D array chip, a cold low noise amplifier, pre-amplifier to provide signal for modems. The entire system fits into a 11 x 5 x 4 cubic inch cryogenic package with an rf-transparent radome. It draws less than 45 W power. BENEFIT: The SQUID array technology will be leveraged into several application areas: compact and energy-efficient, extremely low noise receivers for satellite and deep space communications, low noise, high sensitivity biomedical imaging systems, secure point-to-point microwave links, biomagnetic sensors, and geomagnetic prospecting, receivers for direction finding and geolocation systems for wide frequency ranges. The small footprint, low noise, high sensitivity, high linearity, high directivity and angular accuracy, wide bandwidth SQUID array systems can be installed on moving platforms as it allows maintaining practical pointing alignment of directional antennas while vehicles and aircraft platforms are in motion. It will fit into platform space limitations to allow the installation of the multiple systems enabling low profiles to maintain a small visual and radar target silhouette; fitting into limited electronics rack space; energy-efficient to meet power production limitations on a moving vehicle (motor driven generators).
Agency: Department of Energy | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 149.95K | Year: 2015
This SBIR project is to improve the readout system used for cryogenic detector arrays. A frequency multiplexed scheme call fMUX is one of the prevalent methods, which is used to read out the response of cryogenic detectors, such as Transition Edge Sensors TES) Bolometers, operating at mK temperatures used for astrophysical observations of the Cosmic Microwave Background CMB). The electronics for the TES readout approach is maintained at room temperature and requires careful, wiring to minimize stray wiring inductance, stray capacitance, while at the same time minimizing the cryogenic heat load. We propose to develop improvements to this system by developing drop in replacement components, specifically in the link between the 4K cryocooler stage and 250mK TES. We propose to build a low inductance flexible line which will go the majority of the physical distance from the 4K stage to the 250mK bolometer array. Any stray inductance in these lines can cause reduced system performance by introducing unwanted crosstalk, so its electrical and thermal properties must be precisely managed. We also propose to build a Monolithic Microwave Integrated Circuit MMIC) which would retrofit the resonator board currently used. This resonator structure required for the frequency multiplexing scheme is currently achieved by using discrete surface mount capacitors and custom fabricated inductances, we would replace these discrete elements with lumped element resonators, which are easy to reproduce in the mass quantities required in the Thin film based multi-layer HYPRES Superconducting fabrication technology. The HYPRES goal is to develop technology, which once developed could be introduced with no other change to current readout architecture and thus would be low risk, high reward retrofit for the experiment which uses it. In Phase I project, we will simulate, fabricate and test parts of these components. In Phase II we plan to concentrate on delivering a fully working prototype employing our improvement directly to the Cryogenic detector community. Argonne National Lab is part of the CMB Telescope deployed at the South Pole, responsible for fabricating the TES Bolometers. Our final product is intended to interface directly with the Bolometer wedge they are making, so we plan to work closely with them to insure that our components can be drop in improved replacements for their current solution.