On 7/28/2013 5:46 AM, Rick - DJ0IP / NJ0IP wrote:
James,
Good news, bad news on your suggestion to use two separate baluns for the
job.
The good news is, your suggestion to use two baluns is a great idea.
The bad news is, even though you probably concluded this on your own, it is
not a new concept.
Of course it is not a new idea... I am not
that schamart ! ;-)
In fact it was described at great lengths in the Sep/Oct 2005 issue of QEX
magazine.
Shoot... that would pretty much squelch
my patent application... ;-)
In this article, Andrew introduces the idea of a Hybrid Balun.
However, in reading his conclusion, he says it maintains a good balance and
good rejection of common mode current across a wide range of high impedance.
Interesting article, except for all the math...
Given his results, I still wonder whether
it would be even better if the two were
separated by some grater distance, and housed
in separate containers. Putting all one's
eggs in just one basket, I wonder where there
is some deleterious interaction between the
two.
----------------------- K8JHR -------------------
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