Search-Based Design of Digital Non-Foster Antenna Match for High-Speed Low-Impedance Converters

Previous design procedures for low-frequency digital non-Foster circuits are most effective when high input impedance analog-to-digital converters are employed. However, these earlier design methods did not include the effects of potentially low impedances of high-frequency converters that may be required for antenna impedance matching. Therefore, we present a new search-based design procedure for digital non-Foster antenna matching circuits using low-impedance converters. An example of the new design method is presented, with simulation results showing effective impedance matching of a 10 MHz electrically-small antenna using a digital non-Foster circuit and a low-impedance converter.