Re: NEC-LIST: MININEC Shows Standing Waves at Resonance on Twinline

From: Chuck Counselman <ccc_at_email.domain.hidden>
Date: Tue, 16 Jun 1998 23:44:51 -0400

Jerry R. Ehman wrote:
> . . . I tried a spacing to diameter ratio (I called it D/d)
>of up to 20 with no basic change in the results. Hence, I'm still
>puzzled.

I just now recalled another little problem modeling transmission lines
in MININEC, namely that you need to be careful at the ends of the
line, e.g., where the line connects to the "feedpoint" of a dipole
antenna. I recall Roy Lewallen writing that it helps to "taper" down
the segment lengths as you approach such a point.

-C.
Received on Wed Jun 17 1998 - 10:41:12 EDT

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