| 摘要 |
PROBLEM TO BE SOLVED: To effectively suppress the effect of noise with a simple constitution, enable mounting of constituting components with high density, attain further reduction of the size and improve receiving performance. SOLUTION: A receiving circuit analog circuit part 3 stands opposite to a receiving antenna part 2 putting a circuit wire board 1 in between. A receiving circuit digital circuit part 4 is mounted on the side of the receiving antenna part 2 on one surface of the circuit wire board 1. The receiving circuit digital circuit part 4 is put on the same side of the receiving antenna part 2 of the circuit wire board 1 in parallel to the receiving antenna part 2. That is, the receiving antenna part 2 and the receiving circuit digital circuit part 4 are put in parallel on the one surface of the circuit wire board 1 and the receiving circuit analog circuit part 3 is provided on the other surface of the circuit wire board 1. To the circuit wire board 1, an electromagnetic shield layer 1a is attached. |
