| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a small size and multi-band antenna with a simple structure.SOLUTION: The antenna includes a circuit board 101, a feeding point 102, a power supply unit 103, a first antenna element 104, a meander 105, a second antenna element 106, a short-circuiting part 107, and a first passive element 108. The first antenna element 104 operates as an antenna in a first frequency band f1. The elements from the first antenna element 104 to the second antenna element 106 through the meander 105 operate as an antenna in a second frequency band f2. The first passive element 108 operates as an antenna in a third frequency band f3.</p> |
