Communication system for nano-satellite

Discussion in 'The Projects Forum' started by nyasha, Jan 18, 2011.

  1. nyasha

    Thread Starter Active Member

    Mar 23, 2009
    90
    1
    I am working on the antenna for a communication system which is going to be put in a nano-satellite. I would like to know what are the advantages of using an antenna with a combiner ? I have heard that combiners will result in some of my signal being lost. Can that be solved by attaching amplifiers to the antennas ? I am at the research stage l haven't started building this with my team mates. Please help me !
     
    Last edited: Jan 18, 2011
  2. wayneh

    Expert

    Sep 9, 2010
    12,093
    3,031
    How high is your satellite?
     
  3. nyasha

    Thread Starter Active Member

    Mar 23, 2009
    90
    1
    About 30km
     
  4. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    118km is the edge of space. You'll still have ~1.1kPa air pressure @ 30km.
     
  5. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Have a look at Mini-Circuits' site:
    http://www.minicircuits.com/
    Take a look in their Application Notes section. Scroll down to "Power Splitters/Combiners" near the end of the page, and have a study through "PWR2-4 Frequently asked questions"

    Mini-Circuits has a broad selection of RF modules that are remarkably small and inexpensive.
     
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