XPost: sci.electronics.design, sci.electronics.misc   
   From: spam@spam.com   
      
   On Sun, 10 Mar 2013 02:43:08 +0000 (UTC), Cydrome Leader   
    wrote:   
      
   >are there power levels where they stil use wavegides and the like?   
      
   As much to do with frequency as power level. I've recently completed   
   the design of a Ka band transceiver for satellite (30GHz uplink, 20GHz   
   down). It is a domestic product for delivery of broadband to rural   
   areas. All of the internal RF filtering is done in waveguide, as is   
   the external combining of the transmit and receive signals into a   
   single horn. The transmitter power is just 3W.   
      
   d   
      
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