| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sensitivity adjustment device which can adjust sensitivity of radio wave transmission/reception of an antenna according to intended uses by simple structure, and a radio wave communication apparatus applying the same. <P>SOLUTION: The sensitivity adjustment device comprises a calendar display member 7 in which, on a surface of a ring-shaped display member body, calendar display parts 71 are provided at predetermined intervals along a peripheral line of the display member body, and also a plurality of pairs of a thick wall part 74 as a shielding part for inhibiting the radio waves from penetrating and a thin wall part 75 next to the thick wall part as a releasing part for letting the radio waves pass through are provided corresponding to the calendar display parts 71. The calendar display member 7 is arranged at a position covering an antenna 6, and also changes positions of the shielding parts and the releasing parts in the calendar display member 7 and adjusts a shielding degree of the radio waves to be shielded by the shielding parts by rotating around the ring center by calendar member moving means 78, in order to adjust sensitivity of the antenna 6. <P>COPYRIGHT: (C)2013,JPO&INPIT |
