| 摘要 |
PROBLEM TO BE SOLVED: To provide an array antenna, with which it is possible to improve an F/B ratio.SOLUTION: A power feeding monopole element is arranged at a first position of a ground conductor. A parasitic monopole element is arranged at each of at least three second positions of the ground conductor surrounding the first position. A variable reactance element terminates each parasitic monopole element. A plurality of slits are formed in the ground conductor. Each slit is arranged between mutually adjacent ones of the second positions and extends in a direction intersecting a virtual line connecting the mutually adjacent second positions. |
