| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a multi-antenna device to transmit/receive to radio waves in different frequency bands by realizing the miniaturization and by the optimization with high accuracy and high degree of freedom. <P>SOLUTION: An antenna pattern 11 is separated to a first antenna element 12a and a second antenna element 12b by a cutting part 15 at a length M of resonant position. The antenna has the full length L resonating with the radio wave in a first frequency band, and at the same time, resonates with the radio wave in a second frequency band at the position of the length M. The antenna pattern 11 is formed to a base substrate 2 manufactured by the print wiring technique. A resonator 16 is composed of thin film passive elements 25, 26 resonating with the radio wave in the second frequency band which connects the first antenna element 12a and the second antenna element 12b arranged oppositely across the cutting part 15. The resonator 16 is formed to a thin film circuit 3 manufactured by the thin film technique. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
