Abstract:
A superconducting A/D converter (10) has an error correction system (70) for eliminating non-linearities in a primary quantizer (30). The converter (10) includes a primary quantizer (30), a primary SFQ counter (50), and the error correction system (70). The primary quantizer (30) generates primary SFQ pulses based on an average voltage of an analog input signal. The primary SFQ counter (50) converts the primary SFQ pulses into a digital output signal based on a frequency of the primary SFQ pulses. The error correction system (70) corrects the digital output signal based on the analog input signal and the primary SFQ pulses. Using the primary SFQ pulses to correct the digital output signal allows the converter (10) to take into account the non-linearities of the primary quantizer (30).
Abstract:
A high-speed receiver is disclosed for gathering data from an information signal carried on a superconducting transmission line. The high-speed receiver includes triggers that carry trigger pulses, and a plurality of superconducting sensors magnetically coupled to the transmission line. The sensors respond to the trigger pulses by capturing data from the information signal. The sensors may operate in a variety of capacities, including comparators, A to D converters, and logic functions.
Abstract:
A multi-layer microstrip structure includes a substrate and a first superconducting layer deposited on the substrate. A first dielectric layer, made at least partially of benzocyclobutene (BCB), is deposited on the first superconducting layer. Additional superconducting dielectric and superconducting layers can be employed. Preferably the superconducting layers are made from niobium. The multilayer microstrip structure is ideally suited for use in passive circuit components of microwave circuits and in multi-chip modules.
Abstract:
A rain screen system for attaching an array of panels to the outside of a building, by means of a track system. The track system includes a series of horizontal mounting tracks that extend across the entire width of the panel array. Each horizontal mounting track has an upturned building-side leg that forms both a mounting flange, through a local shim, to the building, as well as the building side of a water tight, continuous, self draining gutter system. Each track also has an upturned panel-side leg that forms both a mounting flange for the lower edge of a panel and the panel side of the gutter system. Each track also forms a water seal at the top edge of the panel. The gutter system has a weep holes on the panel side of the gutter system, adapted so that drainage is fed to the top of the lower panel.