| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semiconductor element capable of tuning macro and micro frequencies, and to provide an antenna and a frequency tuning circuit including the semiconductor element, the semiconductor element in which a PIN diode and a varactor diode are configured by a single element, thereby solving insertion loss, complexity of DC power supply circuit, increase in circuit volume, deterioration of varactor diode linearity, and the like. <P>SOLUTION: The present invention relates to a semiconductor element capable of tuning macro and micro frequencies, and an antenna and a frequency tuning circuit including the semiconductor element. The semiconductor element includes a first semiconductor and a second semiconductor having a same polarity, a third semiconductor disposed between the first semiconductor and the second semiconductor and having a polarity differing from that of the first semiconductor and the second semiconductor, and a pair of intrinsic semiconductors respectively disposed between the first semiconductor and the third semiconductor and between the third semiconductor and the second semiconductor. <P>COPYRIGHT: (C)2008,JPO&INPIT |
