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Re: 0.5*C*V*V vaild? (Was Output Voltages and Voltage/Length) (fwd)
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To: tesla@pupman.com
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Subject: Re: 0.5*C*V*V vaild? (Was Output Voltages and Voltage/Length) (fwd)
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From: Tesla List <mod1@pupman.com>
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Date: Thu, 12 Feb 1998 22:46:08 -0700 (MST)
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Approved: mod1@pupman.com
---------- Forwarded message ----------
Date: Thu, 12 Feb 1998 19:23:29 -0800 (PST)
From: "Edward V. Phillips" <ed@alumni.caltech.edu>
To: tesla@pupman.com
Subject: Re: 0.5*C*V*V vaild? (Was Output Voltages and Voltage/Length)
"> I have also noticed in PSPICE that the voltage dist
> along the sec becomes much more linear when a large
> topload is added.
> If the voltage dist along the sec is mostly linear,
> then is it reasonable to treat the sec ckt as lumped
> elements, and forget the 'antenna theory' treatment?"
The voltage distribution along any electrically short
conductor/helical resonator / antenna will be linear. This is
true for top-loaded vertical antennas, as any book on antenna
design describes. The top loading on a TC is also making
it electrically short, with same effects.
Ed