National Instruments Corporation

Tamir E Moran

Daniel S Wertz

Gregory Stephen Gonzales

Abdolreza Karbassi

Jatinderjit S Bains

Systems and methods for partitioning the frequency spectrum for use in a plurality of function circuits, including step attenuation, phase modulation, and gain amplification functional circuits. A system may include a programmable step attenuator including selection circuitry and functional circuitry. First selection circuitry may include a plurality of outputs and may receive a signal and selectively provide the signal to an output based on the signal's frequency. First circuitry may be coupled to one of the outputs and may operate as a first step attenuator for signals in a first portion of the frequency spectrum. Second circuitry may be coupled to another output and operate as a second step attenuator for signals in a second portion of the frequency spectrum. Second selection circuitry may be coupled to the first and second circuitry and may provide a step attenuated signal from the first or second portion of the frequency spectrum.

Ultra-broadband programmable hybrid step attenuator

In one embodiment, a high frequency module may include a substrate. The substrate may include a first surface and a second surface substantially opposite of the first surface. The high frequency module may include a component coupled to the second surface. A direct current may be provided to the component using the substrate. The high frequency module may include a core coupled to the second surface of the substrate. In some embodiments, the core may include at least one opening extending through the core. The component may be positioned in at least one of the openings. In some embodiments, the high frequency module may include a cover coupled to the core. The component may be positioned in at least one of the openings between the substrate and the cover.

High frequency high isolation multichip module hybrid package

A user obtains a set of modules, inserts them into slots of a chassis, and interconnects the modules to form a modular instrument. A signal path extends through the modules. To support calibration of the signal path, a first of the modules (or the chassis or a calibration module) includes a calibration signal generator. A computer directs the first module to apply the calibration signal from the generator to the signal path, and measures the power (or amplitude) of the output of the signal path. The computer reads a factory-measured value A of the calibration signal amplitude from a memory of the first module (or the chassis or the calibration module). The value A and the measured output power of the signal path are used to determine a gain of the signal path. The system compensates for that gain when the signal path is used to measure live operational signals.

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Petaluma, CA, United States of America

Tamir E Moran