Popis: |
High Tc superconducting (SC) active antennas, which are new types of antennas with a use of active properties of high Tc superconductors, are investigated. The SC active antennas were made from Y-type thin films, which were prepared with magnetron (sputtering) method. As for detections of electromagnetic waves ( f=9.55GHz, f=50.4GHz and 474THz), the sensitivities of the SC active antennas were found to depend on polarizations of radiated electromagnetic waves, applied currents, the annealing temperature, the strength of electromagnetic waves and structures of antennas et al. |