| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an adaptive antenna module that is cheaper to produce, smaller and easy to drive.SOLUTION: An adaptive antenna module AAM comprises a signal path SP, an antenna AN, and a tuning circuit TC with two variable impedance elements VSE, VSH. The tuning circuit TC operates over a restricted range of impedance and maintains the series resonance characteristic of the antenna AN.</p> |
