harvesting energy

Discussion in 'Wireless & RF Design' started by tiang_399, Jul 15, 2012.

  1. tiang_399

    Thread Starter New Member

    Jul 15, 2012
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    0
    hi..
    i need ur help to complete my circuit..
    actually, i have the circuit and the problem is i cant define the input supply which is i want to use Yagi Uda antenna
    the software i used is microwave office..
     
  2. Papabravo

    Expert

    Feb 24, 2006
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    1,791
    Well normally you have a transmitter or an RF signal generator as a source. The circuit that you have drawn does not look like it serves any useful purpose. What is it supposed to do?
     
  3. tiang_399

    Thread Starter New Member

    Jul 15, 2012
    5
    0
    actually there is voltage doubler circuit for single stage..
    the diode i use is hsms 2820 suitable for harvesting system..
    the problem is i want Yagi Uda antenna as the input..
    unfortunately,i didnt know how to define it..
    is that using port?the rf signal is just for component..
     
  4. Papabravo

    Expert

    Feb 24, 2006
    10,145
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    It is an RF generator with a few microvolts of voltage and a few nanoamps of current. A typical signal level from a 3 element beam antenna would be -130 dBm. That is about 13 orders of magnitude less than a milliwatt. You're not going to be harvesting much energy at those levels, but good luck anyway.
     
  5. tiang_399

    Thread Starter New Member

    Jul 15, 2012
    5
    0
    i plan to multiply the stage,thats why i need to do the simulation..
    unfortunately,i didnt know to use Microwave Office,AWR software...
    anyway..thanks a lot bro...
     
  6. WBahn

    Moderator

    Mar 31, 2012
    17,751
    4,798
    Multiply the stage... how? The energy delivered by the antenna is all the energy there is to be harvested. I'm assuming that by "harvest" you mean to capture RF energy and make it usable for pursposes other than supporting an information signal.
     
  7. Papabravo

    Expert

    Feb 24, 2006
    10,145
    1,791
    I guess you're SOL then.
     
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