Wilkinson power splitter always necessary?
Roy Lewallen wrote:
I highly recommend reading the "Phased Array Techniqes" part of Chapter
8 of any edition of the _ARRL Antenna Book_ for about the past 15 or 20
years. It was first written not long after Dana Atchley popularized the
use of the Wilkinson Divider for feeding phased arrays (and the error of
which he later saw), so it contained quite a bit of detail about why
that's a bad idea. When I re-wrote the section for the recent 21st
Edition, I reduced the amount of material regarding the Wilkinson
divider, since I thought it had finally faded away. I'm disappointed to
hear that there's still a "school of thought" which regards it as a
viable feed system after all these years.
If you have the 21st Edition, you'll find the complete text of the
earlier material on the included CD. It contains more detail about why
the Wilkinson divider isn't appropriate for this application.
Gee Roy, didja write the book on that one? ;-)
-=-
Smash
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