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Yuri Blanarovich wrote:
Any experiences out there, rather than more "reasons" why it ain't so? Proper accommodation in modeling programs can give substantial improvement in loaded elements modeling. Assume a transmission line with an SWR of 10:1. Put a series inductor in series with the transmission line. Assuming negligible losses, the forward current is the same at each end of the coil and the reflected current is the same at each end of the coil. The question is: Do the superposed currents, Ifwd+Iref, remain constant? Of course not, because of phase shifts. With a large enough coil, one could cause a current maximum point on one side of the coil and a current minimum point on the other side. That same principle holds true for standing wave antennas which are antennas with (surprise!) standing waves. The current is NOT the same at each end of the coil (unless a current maximum or current minimum occurs in the middle of the coil). However, for traveling wave antennas, the current at each end of a loading coil would be close to equal. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
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