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Recent Awards

Kurt Schab received $575,700.99 from NC State University

Kurt Schab with the Electrical and Computer Engineering Department has received a $575,700.99 award from NC State University to support his project "Metrics and Scaling Principles for Energy Synchronous Direct Antenna Modulation Transmitters".

Kurt Schab with the Electrical and Computer Engineering Department has received a $575,700.99 award from NC State University to support his project "Metrics and Scaling Principles for Energy Synchronous Direct Antenna Modulation Transmitters".

The ability for electrically small antennas to efficiently transmit broadband signals is severely limited by well-known physical bounds on the electromagnetic performance of linear, time-invariant (LTI) systems. This work centers on the use of time-varying (non-LTI) antenna and matching network systems, known as Direct Antenna Modulation (DAM), to exceed these limitations. Previous research has demonstrated the proof of concept of several DAM implementations, but the quantification of LTI and non-LTI performation, particularly in regards to physical bounds, is severely lacking. In this work, we propose two parallel research thrusts. First, we aim to develop robust metrics and methodologies for LTI and non-LTI transmitter system comparison. The primary goal of this thrust is to provide device- and system-level assessment of experimental DAM transmitters relative to fundamental bounds on LTI systems. Additionally, we propose several new approaches to the design of DAM control circuitry and antennas to further improve DAM transmit performance. The refinement of metrics and development of a high-performance DAM prototype are complementary and will take place simultaneously over all phases of this project.