常見例句The radiation and impedance characteristic of microstrip antenna may be influenced by cutting slots on the groundplane with applications to widening the frequency band. 接地板開槽可以改變微帶天線的輻射特性及阻抗特性，在微帶貼片天線的頻帶展寬中已有所應(yīng)用。groundplann. 平麪圖(初步計(jì)劃) 返回 groundplane