J. Phys. IV France 11 (2001) Pr11-151-Pr11-155
Superconducting switch for high power pulse antenna excitationA. Jukna
High Power Pulse Laboratory, Semiconductor Physics Institute, Gostauto 11, 2600 Vilnius, Lithuania
The electric properties and frequency bandwidth of radiation of miniature magnetic-dipole antennas excited by the time-domains, which generate an ultrafast switch made of high-Tc superconductor YBa2Cu3O7 thin film, were investigated. The superconductor switch was incorporated into a current-biased contour of metal-printed antenna and triggered by 14 ps laser pulses. Amplitude, duration, and rise time of the electric pulses, which generates magnetic-dipole antennas driven by laser-triggered superconductor switch, were investigated as a function of the voltage feeding the antennas. The applications of the superconductor switch for a jitter-fiee excitation of highpower magnetic-dipole pulse antennas, which radiate ultra-wide-frequency-band signals in GHz frequency region, are discussed.
© EDP Sciences 2001