Satellite System Design

chamfer

O Şimdi Asker
Katılım
17 Haz 2005
Mesajlar
3,298
Reaction score
0
Puanları
0
Yaş
41
Konum
hackhell.com
İndireceğiniz Ödev ya da Tez'in Mini Özeti ...


The LNB is the electronic device that mounts on the feedhorn and converts that golf ball sized globe of RF energy into an electrical signal the IRD (receiver) can understand and use.Its has three parts: 1-Feed(collect the signals), 2-Amplifier(amplifier the signal amplitude), 3-Converter(converts the frequency to lower) We want to get Ku band(10.7-12.75GHz) that is taken by LNB. An LNB and feedhorn had to be matched to the dish. The internal antenna of the LNB had to be at the exact focal point of the dish and the horn had to be flared in such a way that, with the LNB at the focal point, the horn could "see" the exact circular area of the dish - no more and no less. If it was less then it wasn't collecting signal from the full area of the dish. If it
 

Ekli dosyalar

  • hackhell_elektroteknik_108.zip
    110.6 KB · Görüntüleme: 34
Geri
Üst