"Jerry Stuckle" wrote in message
...
A perfect combiner (like anything else "perfect") doesn't exist. But it
is a very common (and handy) way of specifying how things work. It's used
all over the place in EE degree programs, for instance.

So you start with the perfect item, then add losses, phase shifts, etc. as
they occur to get a "real" part.



I am awear of that 'perfect' vers 'real world'. Took a 2 year asociate
degree in electronics engineering about 40 years ago. Most things are
calculated close and then trimmed to take care of the usual 5 to 10 percent
differance in components.

That is why I was not worried about anything under a DB, but just the parts
close to 3 db.



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