design of parabolic antenna for satellite data reception

[NandaP]

hi ....I want to design a parabolic reflector for satellite data reception. It has to work for wideband of frequencies i.e from 1-10 GHz. So what type of Feeder I have to use. please help me to design it.

 

[SpaceDust]

Hi Nanda,


For Feeder, You can use a horn antenna. It has wide band width and should meet your requirement. Check this link.

www.antenna-theory.com/antennas/aperture/horn.php

 

[ferdows]

for this range usually spiral cavity back or Ridge horn is used for more information u can see datasheet of the Q-Par co

 

[jiripolivka]

for this range usually spiral cavity back or Ridge horn is used for more information u can see datasheet of the Q-Par co

Your problem is wrongly defined. Satellite signal is very low level and the terrestrial receiver must have a good G/T ratio to operate. This cannot be achieved with a "wideband" antenna as you would like.
Study satellite system design, and look how it is really done. In each of frequency bands the receiving antenna and low-noise receiver must be optimized in a relatively narrow bandwidth.
At 1 GHz you would have to use a 5-meter dish for acceptable results while at 8 GHz a 1-foot dish may work.
BTW, there is no "satellite data" frequency band at 1 GHz , nor at 10 GHz. Downlinks run at 1.5 GHz, 3.5-4.4 GHz, at 7-8 GHz, and then 10.7-12.3 GHz, 19.2-20.2 GHz, etc.