robert25pl
May15-05, 04:57 PM
Antenna array consists of two infinite plane parallel sheets in the xy plane spaced half a wavelength apart and having current densities. Wave is propagating in vacuum.
J_{s1} = J_{so}cos(\omega t) \vec{i} z = 0
J_{s2} = J_{so}sin(\omega t) \vec{i} z = \frac{\lambda}{2}
The time average of the Poynting vector is required to e 500 W/m^2 to the right of second antenna (z > \frac{\lambda}{2} )
I have to find surface current Jso is needed?
I think that I have to find total E = E1 + E2 and then H. Poynting vector is given but I don't know how to surface current Jso from that. Any suggestions. Thanks
J_{s1} = J_{so}cos(\omega t) \vec{i} z = 0
J_{s2} = J_{so}sin(\omega t) \vec{i} z = \frac{\lambda}{2}
The time average of the Poynting vector is required to e 500 W/m^2 to the right of second antenna (z > \frac{\lambda}{2} )
I have to find surface current Jso is needed?
I think that I have to find total E = E1 + E2 and then H. Poynting vector is given but I don't know how to surface current Jso from that. Any suggestions. Thanks