| 摘要 |
<P>PROBLEM TO BE SOLVED: To miniaturize an antenna unit. <P>SOLUTION: An antenna unit includes two dipole antennas 31, 32. Each of the dipole antennas 31, 32 has first terminal parts 31d-1, 32d-1 for feeding first antenna elements 31a-1, 32a-1 connected to the internal conductor of a coaxial cable, second terminal parts 31d-2, 32d-2 for feeding second antenna elements 31a-2, 32a-2 connected to the external conductor of the coaxial cable, first parallel conductors 11a, 12a extending from the first terminal parts 31d-1, 32d-1, second parallel conductors 11b, 12b extending from the second terminal parts 31d-2, 32d-2 in parallel with the first parallel conductors 11a, 12a, and short circuit conductors 11c, 12c short-circuiting the first parallel conductors 11a, 12a and the second parallel conductors 11b, 12b. <P>COPYRIGHT: (C)2012,JPO&INPIT |
