| 摘要 |
PROBLEM TO BE SOLVED: To improve the isolation characteristics between transmission and reception, while suppressing degradation of circular polarization axis ratio.SOLUTION: A reception feeding pin 41 of a reception patch 4, and a transmission feeding pin 61 of a transmission patch 6 are provided so as to have a phase angle of 90° relatively. On the periphery of the transmission patch 6, a concave degeneracy separation segment, i.e., a concave degeneracy separation element 62, is provided in a direction of a predetermined angle for the transmission feeding pin 61. On the periphery of the reception patch 4, a convex degeneracy separation segment, i.e., a convex degeneracy separation element 42, is provided in the same direction as the concave degeneracy separation element 62. |
