Re: Lambda/4 Loop Antenna

Attention is invited to the article, Verifying Wire-Grid Model integrity
with program "CHECK", by C.W.Trueman and S.J.Kubina, in Aces Journal V5N2,
Winter 1990. (NEC)

This uses the following relations to flag error producing situations:
For segments
        length> lam/5 (lam=wavelength)
        radius> lam/30
        length/radius< 0.5
For jumctions
        length_big/length_small> 5
        radius_big/radius_small> 10
        length/radius< 2
General
        If segment center lies within volume of another wire
         (common with acute intersection angles)
        Wire axes cross
        Axes are closer than sum of wire radii
        End points are closer than sum of wire radii.

The graphics in the article show the problems extremely well.

These relations show why "unusual" antennas so often give strange results.

As far as I know, the progrom has not been published.

W4MB
Received on Mon Apr 01 1996 - 05:25:00 EST