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Silicon-based reconfigurable antennas-concepts, analysis, implementation, and feasibility

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10 Author(s)
Fathy, A.E. ; Sarnoff Corp., Princeton, NJ, USA ; Rosen, A. ; Owen, H.S. ; McGinty, F.
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We report on an innovative reconfigurable antenna concept with significant practical relevance based on the dynamic definition of metal-like conductive plasma channels in high-resistivity silicon that are activated by the injection of DC current. The plasma channels are precisely formed and addressed using current high-resolution silicon fabrication technology. These dynamically defined plasma-reconfigurable antennas enable frequency hopping, beam shaping, and steering without the complexity of RF feed structures. This concept shows promise for delivering the performance and capabilities of a phased array, but at a reduced cost. However, challenges such as p-i-n biasing circuit complexity and their nonlinearities, as well as antenna efficiency, would still require further investigations.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:51 ,  Issue: 6 )