| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an antenna system including an electrically small antenna for receiving a channel signal from a UHF band by a receiver. <P>SOLUTION: This antenna system including an electrically small antenna includes: connection between a port connected to the antenna and that of a receiver; and an active impedance matching device controlled by a command signal depending on the quality of a signal received by the receiver to compensate for the impedance variations caused by an environment associated with the antenna and to reject the frequencies of interfering channels adjacent to a reception channel without interfering with the active impedance matching of the antenna. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
