| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device that allows reducing signal loss caused by switching between a transmission system and a reception system.SOLUTION: An antenna device includes: an antenna element for transmission; a transmission system for outputting a transmission signal for radiating to space from the antenna element for transmission; an antenna element for reception; a reception system including at least a superconducting circuit, and for receiving a reception signal received by the antenna element for reception, and performing signal processing; and cooling means for cooling the reception system to ultralow temperature so that the superconducting circuit becomes a superconductive state. |
