| 摘要 |
<P>PROBLEM TO BE SOLVED: To resolve a problem of a filtering antenna increasing unfavorably a circuit area while matching a filter to an antenna, which hinders miniaturization of the antenna, and to design a two-stage filtering antenna that achieves a smaller size and good filtering effect. <P>SOLUTION: An antenna part is directly connected to a coupled line resonator. A coupled line resonator provides a filtering function together with the antenna part, and comprises a short-circuited stub and an open-circuited stub. The short-circuited stub comprises an open-circuited end and a short-circuited end connected to ground. The open-circuited stub is parallel to the short-circuited stub across a gap, and comprises a first end and a second end. The first end is connected to a signal feed point, and coupled to the short-circuited stub so as to correspond to the open-circuited end of the short-circuited stub. <P>COPYRIGHT: (C)2013,JPO&INPIT |
