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Old May 13th 10, 07:38 PM posted to rec.radio.amateur.antenna
Jim Lux Jim Lux is offline
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First recorded activity by RadioBanter: Mar 2007
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Default Feeding System found it = Mosley

Owen Duffy wrote:
lu6etj wrote in news:e57e2fbf-75a6-4014-a190-
:

Adding an ideal reactance of -155 ohms


Bit is not a fixed reactance, it is a transmission line element, and you
should model it as that, even if lossless.

Owen

In the Mosley case, judging from the writeup at the link supplied a few
days ago, the series capacitor is sufficiently short (a few inches?),
that it's probably safe to consider it a lumped element. Isn't it just a
wire in the middle of a tube.. essentially a coaxial capacitor.