| 摘要 |
<p>A device for introduction into a subject where the capsule type case can be miniaturized furthermore without compromise in antenna characteristics. Since transmission antennas (27a, 27b) are arranged in imaging domes (15a, 15b) and on the outside of their imaging field of vision, the antennas can be arranged by utilizing a dead space in the capsule type case (15) without causing any trouble with the imaging operation by imaging sections (12a, 12b). Furthermore, since the antennas (27a, 27b) are arranged in the imaging domes (15a, 15b) while directed outward and on the outside of the imaging field of vision becoming an opening end which is not obstructed by other members, other elements incorporated in the capsule type case (15) have no adverse effect on them and desired antenna characteristics, e.g. wide directivity, can be ensured.</p> |
