Beam steering antenna transmitter, multi-user antenna mimo transmitter and related methods of communication

The optically-fed phased-array architecture addresses the challenge of transmitting multiple RF signals with precision and bandwidth by converting RF signals into optical sidebands for focused transmission, enabling flexible and efficient beam steering.

USRE50952E1Active Publication Date: 2026-07-14PHASE SENSITIVE INNOVATIONS INC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
PHASE SENSITIVE INNOVATIONS INC
Filing Date
2023-03-16
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing conformal, low profile, and wideband phased arrays face challenges in efficiently transmitting multiple RF signals to different locations with high precision and bandwidth, particularly in non-scattering environments.

Method used

An optically-fed transmitting phased-array architecture that converts RF signals into optical sidebands using electro-optic modulators and photodiodes, allowing simultaneous transmission of multiple RF beams to distinct locations through an antenna array, utilizing electro-optic modulators and photodiodes to convert RF signals into optical signals for focused transmission.

Benefits of technology

Enables simultaneous, high-precision transmission of RF signals to multiple locations with wide bandwidth and flexibility in frequency usage, accommodating dynamic channel states and environmental scattering.

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Abstract

An transmitter to be used in wireless multi-user MIMO has been described above. The system combines the virtues of digital, analog and optical processing to arrive at a solution for scalable, non-blocking, simultaneous transmission to multiple UE-s. The system architecture is independent of the RF carrier frequency, and different frequency bands can be accessed easily and rapidly by tuning the optical source (TOPS). The data channels are established in the digital domain and the RF beam-forming accuracy is only limited by the available resolution of DAC, which can be as high as 16 bits for 2.8 GSPS in off-the-shelf components.
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