【資料名稱】：GSM基站天線選型
【資料作者】：華為
【資料日期】：2010
[資料語言】：中文
[資料格式】：PDF
【資料目錄和簡介】：

第 1章天線概念...........................................................................................................................1
1.1 天線增益................................................................................................................................1
1.2 天線方向圖.............................................................................................................................2
1.3 極化方式................................................................................................................................4
1.4 下傾Downtilt ....................................................................................................................4
1.5 電壓駐波比VSWR ...........................................................................................................5
1.6 端口隔離度.............................................................................................................................5
1.7 功率容量................................................................................................................................5
1.8 天線輸入接口.........................................................................................................................5
1.9 無源互調(diào)PIM ...................................................................................................................6
1.10 天線尺寸和重量....................................................................................................................6
1.11 風(fēng)載荷.................................................................................................................................6
1.12 工作溫度和濕度....................................................................................................................6
1.13 雷電防護...............................................................................................................................6
1.14 三防能力...............................................................................................................................7
小結(jié).............................................................................................................................................7
第 2章選型中的天線特性考慮.....................................................................................................8
2.1 天線波束寬度與增益之間的關(guān)系............................................................................................8
2.2 極化方式的對比......................................................................................................................9
2.3 天線增益的選擇....................................................................................................................10
2.4 機械下傾與電子下傾的比較..................................................................................................11
2.5 預(yù)置下傾與零點填充的作用比較..........................................................................................12
2.6 傾角調(diào)整...............................................................................................................................13
2.7 波束寬窄的選擇....................................................................................................................14
2.8 地形匹配波束的選用............................................................................................................14
2.9 前后比的選擇.......................................................................................................................15
2.10 天線尺寸的選用..................................................................................................................15
2.11 天線阻抗.............................................................................................................................15
小結(jié)...........................................................................................................................................16
第 3章不同應(yīng)用環(huán)境下的天線選型............................................................................................17
3.1 市區(qū)基站天線選擇................................................................................................................17
3.2 農(nóng)村基站天線選擇................................................................................................................18
3.3 郊區(qū)基站天線選擇................................................................................................................

[ 本帖最后由 litom2004 于 2013-7-3 11:53 編輯 ]