Semiconductor for macro and micro frequency tuning, and antenna and frequency tuning circuit having the semiconductor

摘要

A semiconductor clement for macro and micro frequency tuning, and an antenna and a frequency tuning circuit having the semiconductor element, are provided. The semiconductor element includes first and second semiconductors (31,32) which have a same polarity, a third semiconductor (33) which has a polarity opposite to the polarity of the first and second semiconductors and is interposed between the first and the second semiconductors, a first intrinsic semiconductor (34) which is interposed between the first and the third semiconductors, and a second intrinsic semiconductor (35) which is interposed between the third and the second semiconductors.