| 摘要 |
PROBLEM TO BE SOLVED: To provide a digital radio communication device capable of accommodating improved amount of communication traffic by using leakage coaxial cable for a linear cell.SOLUTION: A composite cable 4 accommodates a plurality of leakage coaxial cables 2a, 2b with different radiation characteristics from each other. The leakage coaxial cables 2a, 2b include an inner conductor and an outer conductor in their inside and are provided with a plurality of leakage slots. In Figure 3(a), their slot cycles relative to the axial direction of the slots are different from each other, and in Figure 3(b), arranged slot patterns are different. A radio communication device supplies a high-frequency signal from an end of the composite cable 4, and performs MIMO (Multiple-Input Multiple-Output) communication.SELECTED DRAWING: Figure 3 |
