Litepoint Corporation

Roman Schilter

Christian Volf Olgaard

Thomas Toldborg Andersen

Nabil Ayoub Elserougi

Carsten Schau Andersen

Yen-Fang Chao

Minh-Chau Huynh

Dirk Walvis

Stephen James Bennett

Zhiyong Huang

Vakis Papaparaskeva

Stefan Kildegaard Klukowski

A method for enabling confirmation of expected phase shifts of radio frequency (RF) signals emitted from respective elements of an antenna array, such as a phased array antenna used for providing directional RF signal radiation patterns needed for beamforming. As a RF signal transmitted via an antenna element of the antenna array is shifted, e.g., stepped, in phase, the resulting received RF signal is monitored. Following detection of a phase shift, a sample of the received RF signal is captured and stored, e.g., for subsequent analysis, such as comparison with one or more expected signal phase differences to characterize the directivity of the transmitted signal.

Method for enabling confirmation of expected phase shifts of radio frequency signals emitted from an antenna array

Method for testing implicit beamforming operation of a radio frequency (RF) data packet signal transceiver device under test (DUT), including transmitting to the DUT combinations of a multidirectional (e.g., legacy) RF test signal and at least two unidirectional (e.g., beamformed) RF test signals with different signal directivity patterns, and monitoring signal strengths of signals received from the DUT in response to each signal. Signal directivity patterns can be controlled by transmitting multiple phase-controlled RF signals via separate arrays of multiple antenna elements to the DUT within a multipath RF signal environment, such as an electromagnetically shielded enclosure.

Method for testing a radio frequency (RF) data packet signal transceiver for proper implicit beamforming operation

A system and method for the execution of a program comprises a user-defined sequence of standard hardware and analysis module commands of an instrument, in the context of a tester comprising a plurality of VSAs and VSGs, or other hardware measurement modules types, where the coordination of command execution and resource availability is built into the system as an inherent part of its overall architecture. As such, the commands are the same as those ordinarily executed in piecemeal fashion, but are now automatically and sequentially executed in an atomic and deterministic manner through the coordinated interaction of embodiments of the invention.

System and method for execution of user-defined instrument command sequences using multiple hardware and analysis modules

Apparatus and method for testing signals from two or more OFDM transmitters simultaneously with a single VSA.

Apparatus and method for simultaneous testing of multiple orthogonal frequency division multiplexed transmitters with single vector signal analyzer

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Sunnyvale, CA, United States of America

Roman Schilter