Frequency‐agile microstrip resonator using DC plasma discharge
Vincent Laquerbe, Romain Pascaud, Thierry Callegari, Laurent Liard, Olivier Pascal · Electronics Letters · 2017
An original and integrated solution to provide frequency agility to microstrip circuits using plasma is proposed. A volume DC plasma discharge is implemented inside a microstrip circular resonator to change its dielectric permittivity in order to tune its frequency. Plasma relative permittivity indeed exhibits positive values lower than 1. Experimental measurements confirm the tuning abilities and performances of such a solution for different pressures and types of gas.