| 摘要 |
PROBLEM TO BE SOLVED: To provide an on-vehicle antenna which can be used commonly for multiple models.SOLUTION: An antenna element 16 is formed of a freely bendable conductor. A first fixed length section 18 has one end connected with an amplifier 28, and extends in the y-axis negative direction by a length L1. A second fixed length section 20 has one end connected with the other end of the first fixed length section 18, and extends in the x-axis negative direction by a length L2. An adjustment section 22 has one end connected with the other end of the second fixed length section 20, and extends in the y-axis positive direction by a length L3. A residual section 24 has one end connected with the other end of the adjustment section 22, and extends in the x-axis positive direction by a length L4. The length L3 of the adjustment section 22 is determined to ensure excellent reception characteristics, while fixing the length L1+L2+L3+L4 of the antenna element 16, the length L1 of the first fixed length section 18, and the length L2 of the second fixed length section 20. |
