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design of parabolic antenna for satellite data reception

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NandaP

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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.
 

ferdows

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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

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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.
 

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