TenTec
[Top] [All Lists]

Re: [TenTec] Antenna measurements

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Antenna measurements
From: Stuart Rohre <rohre@arlut.utexas.edu>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 23 Apr 2013 15:44:31 -0500
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Yes, that case of an accelerating current would radiate per the acceleration criteria in 2nd Edition of Kraus. One type of current that would be accelerating is a simple harmonic oscillation. The harmonic oscillation, like a sine wave, has changes of direction.

A stationary charge does not radiate he states.

Note the other example, (counter example) a uniform current at constant velocity in a straight wire, (non oscillating) does not radiate.

In my Kraus, this part of Chapter 2 is section 2-27

Interesting that ed. 3 is so different. I would think something like mine would be in the first 50 pages or so of your book.

However, I have seen books like the old ARRL Handbooks start right in with wave theory of the E and H field, and never really say what is the process of radiation, other than it happens from an antenna.

-Stuart
K5KVH
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec

<Prev in Thread] Current Thread [Next in Thread>