| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device capable of achieving high sensitivity of a reception system by preventing a strain component generated by a disturbing signal or the like from being superposed on a reception signal.SOLUTION: Reception circuits 61-6n separates a signal received by an antenna element into a plurality of reception systems by a splitter having band pass filters of the quantity which frequency separation requires; low-noise amplifies the separated signals; selects a desired one of the separated reception systems; and outputs a signal of the selected reception system. |
