On 3/22/2024 4:00 PM, john@kk9a.com wrote:
W6NL wrote the following post and article on broadband dipoles:
http://lists.contesting.com/archives/html/Towertalk/1997-11/msg00695.html
https://www.arrl.org/files/file/QEX_Next_Issue/Nov-Dec2018/Leeson.pdf
Dave told me about ten years ago when I asked if he minded that I wrote
it up,that the concept was much older than him, and that he had been
teaching it for years.
I went through the concept as part of a tutorial on using SimSmith for
transmission line calcs, and for designing matching networks. It's here.
http://k9yc.com/PacificonSmithChart.pdf
There's another method of broadbanding that involves using sections of
transmission line as part of the dipole. It was published in one of the
very nice ARRL Antenna Compendiums. Over the years, I've acquired a set.
I'd go look it up, but they're in an outbuilding with the shack, and
it's raining a lot. :) N6BV told me about 15 years ago that a lot the
pieces in those books never made it to QST.
73, Jim K9YC
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