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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

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Acousto-optic architecture for two-dimensional beam scanning in phased-array antennas.

|August 21, 2010

Summary

A new acousto-optic architecture enables high-speed, two-dimensional phased-array antenna beam scanning using minimal control signals. This technology supports K(u) band operation, intrapulse beam forming, and wide tunable bandwidths.

Area of Science:

Electrical Engineering
Optics
Antenna Technology

Background:

Phased-array antennas are crucial for modern radar and communication systems.
High-speed beam scanning is essential for applications requiring rapid target tracking or data acquisition.
Existing beam scanning methods often involve complex control systems and limited bandwidth.

Purpose of the Study:

To introduce a novel in-line additive acousto-optic architecture.
To achieve very high-speed two-dimensional phased-array antenna beam scanning.
To simplify the control mechanism by utilizing only two analog signals.

Main Methods:

Development of an in-line additive acousto-optic architecture.
Integration of acousto-optic devices for beam steering.

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Implementation of a simplified two-analog-signal control system.

Main Results:

Demonstration of very high-speed beam scanning (approximately 0.4 seconds).
Capability for two-dimensional beam steering with minimal control inputs.
Support for K(u) band operation, intrapulse beam forming, and multiband operation.
Achieved wide tunable bandwidth (2-GHz).

Conclusions:

The proposed acousto-optic architecture offers a significant advancement in phased-array antenna beam scanning.
This architecture provides a high-speed, simplified, and versatile solution for advanced antenna systems.
Potential applications include high-performance radar, electronic warfare, and satellite communications.