| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio senser receiver capable of making the shape of a receiving antenna part small in size and thin in thickness without being affected by the modification of an installed facility side or the periphery and without deteriorating various characteristics such as the receiving sensitivity of the radio sensor receiving device. SOLUTION: A parts mounted board 80 is provided with a receiving circuit part 82, a signal processing part 83 and an antenna part 81 on one face, and provided with a ground electrode GND on a portion of the other face. The receiving circuit part 82 and the signal processing part 83 are installed in a region opposite to the ground electrode GND. The antenna part 81 includes a plurality of antenna elements 811 to 813, and each of the antenna elements 811 to 813 is arranged in a region which is not opposite to the ground electrode GND, and connected in series. COPYRIGHT: (C)2007,JPO&INPIT |
