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Homework Help: Antenna array

  1. May 23, 2005 #1
    If current densities are given in a perfect dielectric medium having [tex]\epsilon , \mu[/tex]
    I have to find the power dissipated per unit volume, the electric field energy density, and the magnetic field energy density everywhere.
    Can I get help with equations?
     
  2. jcsd
  3. May 24, 2005 #2
    These are standard equations (outcomes of electromagnetic theory) and you should be able to find them even in a basic treatment of electromagnetic waves (for example, in books like Krane, Sears/Zemansky, etc). You could even search on google.com. What is your specific trouble with them?
     
  4. May 24, 2005 #3
    Given
    [tex]E=J_{so}cos(\omega t-\beta z) \vec{i} [/tex]
    and
    [tex]H=\frac{J_{so}}{2}cos(\omega t-\beta z) \vec{j} [/tex]

    I have to find power flow density vector(this i know is a P=ExH pointing vector the power)
    the dissipated per unit volume, the electric field energy density, and the magnetic field energy density everywhere.
     
  5. May 24, 2005 #4
    Any help with this problem. Its due today. Thanks
     
  6. May 24, 2005 #5
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