Re: NEC-LIST: Which part of the dipole radiates most?

JRB:

Thank you very much for the moving displays.

Two questions, please:

1) One presumes a similar display of S-sub-y ("up" direction in the
center movie) should present the same result as S-sub-z. S-sub-y
calculations and display would provide a convenient check. Has this
been done? (Likewise of course, S-sub-x should show zero).

2) The observer is seeing S-sub-z on a plane 1/20 of a wavelength
broadside to the wire orthogonal to the observer. Would seeing
S-sub-z on a plane farther from the wire, say, anywhere out to the
radius of the "Wheeler cap" (lambda/2Pi), lead to the same conclusion?

Best regards

Dan Bathker

Jozef R. Bergervoet wrote:
>
>Recently, there was a discussion about the radiation of a dipole
>antenna: does it come mainly or from the center or from the endpoints?
>I made some movies of a simple 3D FDTD model for this system.
>
>If you believe that the Pyonting vector gives the energy flow, then
>you can find the ultimate answer in:
>
> http://www.iae.nl/users/bergervo/gouy/dipole.html
Received on Fri Mar 03 2000 - 04:13:47 EST