Post on 19-Dec-2015
description
𝐺𝑇 𝑑𝐵𝑖 = 𝐷𝑇 𝑑𝐵 ;𝐺𝑅 𝑑𝐵𝑖
= 𝐷𝑅 𝑑𝐵 ; 𝐴.𝑆.𝑃𝑒𝑟𝑑𝑎𝑠
𝐴𝑒 =Pr 𝑚á𝑥
𝑆 𝑚2 ;𝐴 =
𝑃𝑟
𝑆 𝐴.𝐸𝑓𝑒𝑡𝑖𝑣𝑎
𝐴𝑒 𝑖𝑠𝑜 =𝜆2
4𝜋; 𝑆 =
𝐺𝑇 .𝑃𝑇
4𝜋𝑟2 𝐷. 𝑝𝑜𝑡ê𝑛𝑐𝑖𝑎
𝑃𝑟 =𝐺𝑇 .𝑃𝑇𝜆2 .𝐺𝑅
(4𝜋𝑟 )2 ; 𝐺𝑅 = 𝐷𝑅; 𝐴 =𝑃𝑇
𝑃𝑅
𝐴 =(4𝜋𝑓𝑟 )2
𝐺𝑇 .𝐺𝑅 .𝑐2 ; 𝑟 ≫𝜆
4𝜋 𝐺𝑇.𝐺𝑅 ;
𝑃𝑟 =𝐺𝑇 .𝐺𝑅 .𝑃𝑇𝜆2
(4𝜋𝑟 )2 𝐸.𝐺.𝑅𝑎𝑑𝑖𝑜;
𝐴 𝑑𝐵 = 10𝑙𝑜𝑔𝐴(4𝜋𝑓𝑟 )2
(𝐺𝑇 .𝐺𝑅 .𝑐)2 ;
𝐴 𝑑𝐵 = 32.44 + 20 log 𝑟 𝐾𝑚 +
20 log 𝑓 𝑀𝑧 − 𝐺𝑇 𝑑𝐵𝑖 − 𝐺𝑅(𝑑𝐵𝑖);
𝐴 𝑑𝐵 = 10𝑙𝑜𝑔𝑃𝑇
𝑃𝑅; 𝑃𝑅 =
𝑃𝑇
10𝐴 (𝑑𝐵 )
10
;
𝑆𝑟 =𝐸2
120𝜋; 𝑃𝑟 = 𝑆𝑟.𝐴𝑒;
PARABÓLICA
𝐴𝑔 = 𝜋 𝑑
2
2; 𝛾 =
𝐴𝑒
𝐴𝑔; 𝐷 = 8
𝑑
𝜆
2; 𝑓
𝑑≅ 0,433
𝐺𝑜 ≅ 6 𝑑
𝜆
2; 𝜃𝑎𝑏 ≅
72𝜆
𝑑 ; 𝛾𝑚á𝑥 ≅ 0.80
Aberturas de feixe piramidal
𝜃𝑎𝑏 ≅164 ,74
𝐷𝑝 ; 𝜃𝑎𝑏 ≅ 2𝜃𝑎𝑏