| 摘要 |
PURPOSE:To obtain a disturbing wave signal correlated with a disturbing wave in a main antenna by using an array antenna for the main antenna and providing an auxiliary antenna made up of plural element antennas thinned out by thinning technique of array antenna on the open face. CONSTITUTION:The main antenna M is constituted of a driven element antenna 1, and the auxiliary antenna A is constituted of thinned element antenna 2. To realize the auxiliary antenna A, the thinning out technique of an array antenna is applied. In an antenna of above-mentioned constitution, the same antenna system can be used for the main antenna M that receives desired wave signals and disturbing wave signals and the auxiliary antenna A that receives only disturbing wave signals. Accordingly, the disturbing wave signals correlated with disturbing wave signals, primarily to be eliminated, mixed in the main antenna M can be obtained from the auxiliary antenna A. |
