Dr. Thomas Larry Profile

Dr. Thomas Larry

Senior Scientist at Toyon Research Corp

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Proceedings Article | 27 April 2007 Paper

Microfluidic systems for reconfigurable RF surfaces and systems

Thomas Larry, Michael VanBlaricum

Proceedings Volume 6525, 652518 (2007) https://doi.org/10.1117/12.715188

KEYWORDS: Control systems, Microfluidics, Antennas, Radar, Sensors, Switches, Adaptive control, Electrodes, Feedback control, Resistance

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Adaptive control of electromagnetic (EM) properties across the surface of a platform can enhance its operational capabilities and survivability. Microfluidic systems may be an enabling technology for such EM control. Communication links use portions of the surface and other EM sensors may provide information about the environment or gather signal intelligence (SIGINT). At the surface, light or radar signals are reflected or scattered and provide the primary means of detection by an adversary's sensor systems such as radar. An electronically reconfigurable surface (ERS) would adaptively control these EM processes. An ERS is based on the distributed and adaptive control of the RF (radio frequencies) surface properties. For an ERS system the RF control would be accomplished by embedding in the surface region microwave circuits containing devices with controllable impedance characteristics. A microfluidic system that uses colloidal particle control and local circulation could provide a means of implementing the distributed impedance control needed for ERS systems. This paper provides a systems level overview of the application of microfluidic devices and systems as an enabling technology for ERS systems. A feedback and control subsystem would provide control signals to adaptively alter microfluidic device impedance characteristics, which would be the basis of the RF control.

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