Psemi Corporation

Peregrine Semiconductor Corporation

Sequoia Communications Corporation

Quintic Holdings

Marc Facchini

John B Groe

Peter Bacon

Tero Tapio Ranta

Babak Nejati

Michael Naone Farias

Thomas Hardin

Allen Groenke

Methods and systems for determining the error vector magnitudes for an RF device by fitting voltage magnitudes to a Rayleigh distribution to produce weighting parameters for an EVM calculation, either in simulation for designing the RF device or as validation measurements from a physical RF device.

Systems and methods for device specification design and verification by error vector magnitude prediction

Devices and methods for implementing an RF integrated circuit device operatively configured to provide the function of RF power splitter with programmable output phase shift are described. Configurable and adjustable phase shift units for use in such IC device are also described.

Power splitter with programmable output phase shift

Systems and methods for nulling offsets in differential signaling systems are described. A first circuit may be configured to sense the difference between a first differential current and a second differential current and provide a sense signal to an adjustment circuit. The adjustment circuit may be configured to generate a correction signal based on the sense signal, where the correction signal is combined with the first differential current to reduce the offset between the first differential current and the second differential current. Alternately, the correction signal may be combined with the first and second differential currents to reduce the offset. The process may be repeated until the corrected first differential current and the second differential current are within a desired tolerance.

Offset nulling for decreasing offset between currents in a differential signaling system

System for high-Q integrated RF filters. A filter system is provided that comprises a resonate LC filter and a Q-enhancement circuit coupled to the resonate LC filter, wherein the Q-enhancement circuit operates to improve a quality factor of the filter system.

High-Q integrated RF filters

Growing community of inventors

San Diego, CA, United States of America

Marc Facchini