| 摘要 |
PROBLEM TO BE SOLVED: To provide an MIMO antenna structure which can be utilized in an MIMO communication system, and can achieve an MIMO communication system of wide band.SOLUTION: An MIMO antenna structure 10A is formed of two antennas 11A arranged in the lateral direction while spaced apart by a predetermined dimension, and a conductive first connection member 12 for interconnecting the antennas 11A electrically. The antenna 11A is formed of an unbalanced feed material 13 having a feeding part 23A and a passive part 24, a conductor pipe 18 for resonance having a predetermined length and covering the feeding part 23A of the unbalanced feed material 13 and a conductor pipe 19 for ground having a predetermined length and covering the passive part 24 of the unbalanced feed material 13. These conductor pipes 18, 19 and the unbalanced feed material 13 are fixed electrically via predetermined fixing means. |
