O             名稱         結構與材料

   1             天線基片       介質陶瓷

   2              引腳         銅鍍錫合金

   3             輻射面          鍍銀

   4             接地面          鍍銀

5．射頻特性    RF Characterisrics

                        表2

   NO                         項目                         特性                      環境實驗允許附加誤差 

      5.1                       接收頻率範圍            1571-1579MHz                  ——

      5.2                       中心頻率                  1575.42MHz                      ±2.0MHz

       5.3                            帶寬                  8MHz                                     0.5MHz

      5.4                           駐波比                             1.5max                                        ±0.5

      5.5                           增益                 ＋1.5Dbi                                   ±0.2

      5.6                           軸比                                   ≤3．0DB                                   ±0.2

      5.7                          偏振方式                           右旋圓極化                              ——

      5.8                        特性阻抗                             50 Ohm                                      ±5.0

      5.9                        頻率溫度係數           20max                                     ——     

     5.10        與天線平面成10℃夾角時增益     －2.0DBI                                ±0.2

     備註：  以上參數均為標準品參數，實際使用將以為客戶調試的最優效果樣品為準