| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that in a multi-turn loop antenna, antenna gain is changed depending on a distance between the loop antenna and a conductor, such as a metal plate and human body, even when balanced feeding is carried out. <P>SOLUTION: One end 10 of a first loop element 7 is connected to a first balanced feed terminal 5, and the other end 11 of the first loop element 7 is connected to one end 14 of a third loop element 9. Further, one end 12 of a second loop element 8 is connected to the other end 15 of a third loop element 9, and the other end 13 of the second loop element 8 is connected to a second balanced feed terminal 6. Thus, the loop antenna employs the structure in which the loop elements adjacent to each other are alternately connected to each other without connecting them in order. <P>COPYRIGHT: (C)2012,JPO&INPIT |
